五年级解方程练习题180题有答案
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题(有答案五年级解方程练习题180
题有答案五年级解方程
180
(7)
x+5.6=9.4(1)(0.5+x)+x=9.8÷2
(10)x-0.7x=3.6)2(X+X+0.5)=9.8(2
(11)91÷x=25000+x=6x1.3)(3
(123200=440+5X+X(4)) X+8.3=10.7
3)(5X-0.8X=6(13) 15x=
16(6)12x-8x=4.88-=(14) 3x
(15) 3x+9=27(7) 7.5+2X=15
(16) 18(x-2)=270(8)1.2x=81.6
)
(有答案题五年级解方程练习题180
(17)
12x=300-4x
(31)
0.1(x+6)=3.3×0.4
(18)
7x+5.3=7.4
(32)
(27.5-3.5)÷x=4
(19)
3x÷5=4.8
(33)
9x-40=5
(25) 0.5x+8=43
(34) x÷5+9=21
(26) 6x-3x=18
(35)
48-27+5x=31
(27)
7(6.5+x)=87.5
(36)
10.5+x+21=56
0.273÷x=0.35(28 )
(37)
x+2x+18=78
(29) 1.8x=0.972
(38)
(200-x)÷5=30
(30)
x÷0.756=90
)
(有答案五年级解方程练习题180题
(48)(x-140)÷70=4
3(x+3)=50-x+3
20-9x=2(40)
(49) 5x+15=60
(41)
x+19.8=25.8
(50) 3.5-5x=2
5.6x=33.6(42)
(51)
0.3×7+4x=12.5
9.8-x=3.8)43(
(52) x÷1.5-1.25=0.75
(39)
75.6÷x=12.6) (44
1.3×6=2.6 4x-)(53
5x+12.5=32.3)(45
6x+12.8=15.854)(
5(x+8)=102()46
150×2+3x=69055()
x+3x+10=70)47(
2x-20=4(56)
)
(有答案五年级解方程练习题180题
(66 3x+6=18)13(x+5)=169(57)
(67) 2x-97=34.2(58) 2(2.8+x)=10.4
(6859)
(x-3)÷2=7.5)3.4x-48=26.8(
((69)42x+25x=134 13.2x+9x=33.360)
( 3x=x+100(61)70)1.5(x+1.6)=3.6
2(x-3)=5.8
x+4.8=7.262()71)(
6x+18=48)63(
65x+7=137)(72
3(x+2.1)=10.564)(
91(73) 9x+4×2.5=
12x-9x=8.7()65
)
有答案题(五年级解方程练习题180
(83)134(74) 4.2
x+2.5x=5X-2X=18
(75)
10.5x+6.5x=51
(84)3X+0.7=7
(76)
89x-43x=9.2
(85) 3.5×2= 4.2+x
(77) 5x-45=100
(86) 26×1.5=
2x+10
(87) 0.5×16―16×0.2=4x(78)
1.2x-0.5x=6.3
X=0.403(79) 23.4=2x-(88) 13 9.25
(89) 18.9÷X=0.
3(80) 4x-x=48.6
27(81) 4.5x-x=28+(90) 23x=14x
14x=75+(82)X-5.7=2.15(91) x
)
有答案180五年级解方程练习题题(
80=95-5x(92)
5x+x=9)(101
54=)1.8 +6x(93
8x-8=6x)(102
6.760.3=(94) 6.7x-
103) x=20(
53(95) 9+4x=
(104)
2x-6=12
(96) 2x+8=16
7x+7=14(105)
(97)
20x-14x=24
6x-6=0(106)
(98) x+7x=8
5x+6=11)(107
(99) 9x-3x=6
2x-8=10(108)
6x-8=4(100)
(有答案五年级解方程练习题180题
(118) 3x-3=3
x-=7110)(
(119) 5x-3x=4
(111)3x+7=28
(120)
2x+16=19
(112) 3x-7=26
)
)(
2.5x-8=4109
(121) 5x+8=19
(122) 14-6x=8(113) 9x-x=16
(123) 15+6x=27(114) 24x+x=50
(124) 5-8x=4(115) 1.2x-8=4
(125) 7x+8=15(116) 3x-8=31
(126) 9-2x=1(117)
6x+6=12
(有答案五年级解方程练习题180题
(136) x-56=1(127) 4+5x=9
(137) 8-7x=1(128) 10-x=8
(138)x-30=12(129) 8x+9=17
(139) 6x-21=21(130) 9+6x=15
(140) 6x-3=6(131) x+9x=4+7
(141) 9x=18(132) 2x+9=17
)
(142) 4x-18=14(133) 8-4x=6
(134) 6x-7=28
(143) 5x+9=11
(135) 7x-9=20
有答案题(五年级解方程练习题180
(144)
17-2x=11
X=0.402-(153) 9.26
(145) x+4+8=23
(154) 36.9÷X=0.3
(146)
7x-12=9
(155)
X÷0.5=2.6
(147) X-5.7=2.15
80=-5x(156) 93
(148)
5X-2X=18
54(157) 180-6x=
(149) 3X +0.5=5
40=(158) 9+4x
(150) 3.5×2= 4
x
3.70.5=-(159) 0.2x0.4+
(151) 26×1.5= 2x
16.2=-(160)
9.4x0.4x
(152)
0.5×16―16×0.1=4x
)
五年级解方程练习题180题(有答案)
(161) 92-4x=20(169) 5x =30
(170) x-5.6=9.4(162) 7x÷6=1.4
(171) x÷0.8=90+34x=1(163) 16x
(172) 3x-14x=12(164) 18x-8=16
(173) 3x+9=27(165) 3 x-42÷14=15
(174) 5.3+7x=7.4(166) 12+4x=56
(175) 3x÷5=4.8
14x=12(167) 22-
(176)
X-0.8X=6
(168) X+8.3=10.7
(177) 12x+8x=4.8
)
180题(有答案五年级解方程练习题
(178) 7(x-2)=49
x)÷5=30(182)(300-
(179)
4×8+2x=36
1.3(183) 91÷x =
2)÷3=7(180) (x-
(184) 41-3x=17(181) x÷5+9=21
题答案180五年级解方程
2x=4.4
(1)(0.5+x)+x=9.8÷2 2x÷
2=4.4÷2 0.5+2x=4.9 X=2.2
0.5+2x-0.5=4.9-0.5 2(X+X+0.5)=9.8)
2(.
)
有答案180题(五年级解方程练习题
0.2x=6 2x+2x+1=9.8
0.2x÷0.2=6÷0.2 4x+1-1=9.8-1
X=30 4x=8.8
(6)12x-8x=4.8 4x÷4=8.8÷4
4x=4.8 X=2.2
4x÷4=4.8÷425000+x=6x3) (X=1.2
25000+x-x=6x-x(7)
7.5+2X=15
5x=250002x+7.5-7.5=15-7.55x÷5=25000÷5
2x=7.5
X=5000
2x÷2=7.5÷2)43200=440+5X+X (X=3.75
6x+440=3200
(8)
1.2x=81.66x+450-450=3200-440
1.2x÷1.2=81.6÷1.26x=2760
X=686x÷6=2760÷6 X=460(9) x+5.6=9.4
X+5.6-5.6=9.4-5.6
X-0.8X=6)5(.
)
有答案题(五年级解方程练习题180
(14) 3x-8=X=3.8 16
3x-8+8=16+8 (10)x-0.7x=3.6
3x=24 0.3x=3.6
3x÷3=24÷3 0.3x÷0.3=3.6÷0.3
X=8 X=12
(15) 3x+9=27(11)91÷x=1.3
3x+9-9=27-9
91÷x×x=1.3×x
3x=18
1.3x=913x÷3=18÷31.3x÷1.3=91÷1.3
3x=6X=70
(16) 18(x-2)=270 (12) X+8.3=10.7
X+8.3-8.3=10.7-8.318x-36=270
X=2.418x-36+36=270+36
18x=306 =(13) 15x3
15x÷15=3÷15 18x÷18=306÷18
X=0.2X=17
(17) 12x=300-4x
)
有答案题(五年级解方程练习题180
30÷x×x=60×x
12x+4x=300-4x+4x
30=60x 16x=300
60x÷60=30÷60 16x÷16=300÷16
X=0.5
X=18.75
(21) 1.4×8-2x=6 (18) 7x+5.3=7.4
11.2-2x+2x=6+2x 7x+5.3-5.3=7.4-5.3
11.2=6+2x7x=2.1
2x+6-6=11.2-6 7x÷7=2.1÷7
2x=5.2 X=0.32x÷2=5.2÷2 (19) 3x÷5=4.8X=2.6
3x÷5×
5=4.8×5
(22)
6x-3x=2412.8×3=0.06
3x÷3=24÷36x-38.4=0.06
X=86x=38.46 (20) 30÷x+25=856x
÷6=38.46÷6
-25=85-2530÷x+25X=6.41 (23) 410-3x=170
30÷x=60.
)
有答案题(五年级解方程练习题180
(26)
6x-3x=18 410-3x+3x=170+3x
3x=18 170+3x=410
3x÷3=18÷3 3x+170-170=410-170X=63x=240
(27) 7(6.5+x)=87.5 3x÷3=240÷3
7x+45.5=87.5 X=80
7x+45.5-45.5=87.5-45.5(24) 3(x+0.5)=21
7x=423x+1.5=21
7x÷7=42÷73x+1.5-1.5=21-1.5
X=63x=19.5
3x÷3=19.5÷3 (28) 0.273÷x=0.35
X=6.5
x=0.273÷0.35 (25) 0.5x+8=43 X=0.78
0.5x+8-8=43-8
0.5x=35
(29) 1.8x=0.972 0.5x÷0.5=35÷0.5
1.8x÷
1.8=0.972÷1.8 X=70 X=0.54.
) 有答案题(五年级解方程练习题180
9x÷9=45÷9
(30)
x÷0.756=90X=5
x÷0.756×0.756=90×0.756(34)
x÷5+9=21
X=68.04x÷5+9-9=21-9
(31)
0.1(x+6)=3.3×0.4 x÷5=12 0.1x+0.6=1.32
x÷5×
5=12×5 0.1x+0.6-0.6=1.32-0.6 X=60
0.1x=0.72 (35)
48-27+5x=31 0.1x÷0.1=0.72÷0.1
5x+21-21=31-21 X=7.2 5x=10
3.5)÷x=4(32)
(27.5- 5x÷5=10÷5 24÷x=4 X=2 x=24÷4 (36)
10.5+x+21=56 X=6 x+31.5-31.5=56-31.5 (33)
9x-40=5 x=24.5
9x-40+40=5+40 (37)
x+2x+18=78 9x=45 3x+18-18=78-18.
)
有答案180题(五年级解方程练习题
9x=20-2 3x=60
9x=18
3x÷3=60÷39x÷9=18÷9 X=20
X=2 (38)
(200-x)÷5=30(41)
x+19.8=25.8(200-x)÷5
×5=30×5
X+19.8-19.8=25.8-19.8 200-x=150
X=6200-x+x=150+x
150+x=200
5.6x=33.6(42) X+150-150=200-150
5.6x÷
5.6=33.6÷5.6 X=50 X=6
(39) (x-140)÷70=4 9.8-x=3.843()
140)÷70×70=4×
70(x- 9.8-x+x=3.8+x X-140=280
3.8+x=9.8 X-140+140=280+140
X=9.8-3.8 X=420
X=6 20-9x=2)40( 75.6÷x=12.6 )44(.
)
有答案180题(五年级解方程练习题
4x=60
X=75.6÷12.6
4x÷4=60÷4 X=6
X=15
) 5x+12.5=32.3(45(48) 3(x+3)=50-x+3
5x+12.5-12.5=32.3-12.5 3x+9=53-x 5x=19.8
3x+x+9-9=53-x+x-9
5x÷5=19.8÷5 4x=44 X=3.96
4x÷4=44÷4 5(x+8)=10246)( X=11
5x+40=102
) 5x+15=6049(5x+40-40=102-40
5x+15-15=60-155x=62 5x
÷5=62÷55x=45
5x÷5=45÷5X=12.4 )47( x+3x+10=70X=9 )
(
4x+10=7050 3.5-5x=2 3.5-5x+5x=2+5x
4x+10-10=70-10.
)
有答案题五年级解方程练习题180(4x-1.3×6+1.3×6=2.6+1.3×65x+2=3.5
4x=10.4
5x+2-2=3.5-2
4x÷4=10.4÷4 5x=1.5
X=2.6
5x÷5=1.5÷5(X=0.3 54) 6x+12.8=15.8
6x+12.8-12.8=15.8-12.8 0.3×7+4x=12.5 )(516x=3
4x+2.1=12.5
6x÷6=3÷6 4x+2.1-2.1=12.5-2.1
X=0.54x=10.4
4x÷4=10.4÷4
150×2+3x=69055) ( X=2.6 3x+300=690
(52-1.25=0.75x÷1.5 ) 3x+300-300=690-300
x÷
1.5-1.25+1.25=0.75+1.25 3x=390 x÷1.5=2
3x÷3=390÷3 x÷1.5
×1.5=2×1.5 X=130 X=3
2x-20=4)56( 1.3×6=2.6 4x-)53
(.
)
有答案180题(五年级解方程练习题
(x-3
)÷2×2=7.5×2
2x-20+20=4+20X-3=152x=24
X=182x÷2=24÷2
X=12(60)
13.2x+9x=33.3
22.2x=33.357)
3x+6=18 (22.2x÷22.2=33.3÷22.2
3x+6-6=18-6
3x=12X=1.5
)3x÷3=12÷3 3x=x+100(61
X=43x-x=x-x+100
2(2.8+x)=10.4(58) 2x=100
2x÷2=100÷25.6+2x=10.4
X=502x+5.6-5.6=10.4-5.6
x+4.8=7.2)2x=4.8
(62 2x÷2=4.8÷2X=7.2-4.8 X=2.4X=2.4
6x+18=48)63( 3)÷2=7.5 (x-)59(.
)
有答案180题(五年级解方程练习题
13x=104 6x+18-18=48-18
13x÷13=104÷13 6x=30X=86x÷6=30÷6
(67)x=5
2x-97=34.2
2x-97+97=34.2+97 64()3(x+2.1)=10.5
2x=131.23x+6.3=10.5
2x÷2=131.2÷2
3x=10.5-6.3
X=65.6 3x=4.2
3x÷3=4.2÷3 3.4x-48=26.8(68) X=1.4
3.4x-48+48=26.8+48 12x-9x=8.7)(65 3.4x=74.8
3x=8.7 3.4x÷
3.4=74.8÷3.4 3x÷3=8.7÷3 X=22 X=2.9
42x+25x=134)(69 66()
13(x+5)=169 67x=134
13x+65=169 67x÷67=134÷67
13x+65-65=169-65.
)
有答案180题(五年级解方程练习题
X=2 X=2
(73)
9x+4×2.5=9170)1.5(x+1.6)=3.6 (9x+10=91
1.5x+2.4=3.69x+10-10=91-101.5x=3.6-2.4
9x=81 1.5x=1.29x÷9=81÷91.5x÷1.5=1.2÷1.5
X=9 X=0.8
)(712(x-3)=5.8
134(74) 4.2 x+2.5x= 2x-6=5.8 6.7x=134
2x-6+6=5.8+6 6.7x÷6.7=134÷6.7 2x=11.8 X=20
2x÷2=11.8÷2
(75) 10.5x+6.5x=51 X=5.9 17x=51
72)65x+7=137( 17x÷17=51
÷17 65x+7-7=137-7 X=3
65x=130 (76) 89x-43x=9.2 65x÷65=130
÷65.
)
有答案题(180五年级解方程练习题
3x=48.6 46x=9.2
3x÷3=48.6÷3 46x÷46=9.2÷46
X=16.2 X=0.2
(81) 4.5x-x=28
(77)
5x-45=1003.5x=28
5x-45+45=100+453.5x÷3.5=28÷3.5
5x=145 X=8
5x÷5=145÷5 )X-5.7=2.15(82 X=29 X=5.7+2.15 (78)
1.2x-0.5x=6.3 X=7.85 0.7x=6.3 5X-2X=1883)(
0.7x÷0.7=6.3÷
0.7 3x=18 X=9 3x÷3=18÷3 (79)
23.4=2x X=6 2x÷2=23.4÷2 )
3X+0.7=784( X=11.7
3x+0.7-0.7=7-0.7 (80) 4x-x=48.6 3x=6.3.
)
有答案180题(五年级解方程练习题
X=139.25-0.403 3x÷3=6.3÷3
X=138.847 X=2.1
(89) 18.9÷X=0. 3 (85)
3.5×2= 4.2+x
X=18.9÷0.3 4.2+x=7X=63 X=7-4.2
(90) 23x=14x+X=2.8 27
23x-14x=14x-14x+27
(86) 26×1.5= 2x+10
9x=27 2x+10=39
9x÷9=27÷92x+10-10=39-10
X=3 2x=29
(91) x+14x=752x÷2=29÷2
15x=75 X=14.5
15x÷15=75÷15 (87) 0.5×16―16×0.2=4x
4x=4.8X=5 =805x95 4x÷4=4.8÷4(92)-
X=1.295-5x+5x=80+5x 5x+80=95 X=0.403-(88) 13
9.25.
)
有答案180题(五年级解方程练习题
X=11
5x+80-80=95-80
(96) 2x+8=16 5x=152x=16-8 X=3
2x=8 (93)1.8 +6x=542x÷2=8÷2 6x=54-1.8
X=4 6x=52.2
(97) 20x-14x=24 6x÷6=52.2÷6
X=8.76x=24 =6.7 6x÷6=24÷660.394) 6.7x(-
6.7x=60.3+6.7X=4 6.7x=67(98) x+7x=8
8x=86.7x÷6.7=67÷6.7
X=1X=10 4x+(95)
9=(99) 9x-3x=6 53 6x=64x=53-9
4x=44 X=1
6x-8=4)(100 4x÷4=44÷4.
)
有答案180题(五年级解方程练习题
2x-6+6=12+6 6x-8+8=4+8
2x=18 6x=122x÷2=18÷2 X=2
X=9 (101)
5x+x=9(105) 7x+7=14 6x=9
7x+7-7=14-7
6x÷6=9÷6
7x=7 x=1.5
7x÷7=7÷7 )(102
8x-8=6xX=1 8x-8+8=6x+8
(8x-6x=6x-6x+8 106)
6x-6=0
6x-6+6=0+6 2x=86x=6 2x÷2=8÷2X=1
X=4(107) 5x+6=11 103)
x=20(
x÷=20÷5x+6-6=11-6 X=25 5x=5 X=1 (104)
2x-6=12.
)
有答案180题(五年级解方程练习题
(112)
3x-7=26 2x-8=10 (108)
3x-7+7=26+7
2x-8+8=10+8
3x=33 2x=18
3x÷3=33÷3 X=9
X=11 2.5x-8=4 (109)(113)
9x-x=162.5x-8+8=4+8
8x=16 2.5x=128x÷8=16÷8
2.5x÷2.5=12÷2.5X=2X=4.8
(114) 24x+x=50)(110
x-=7
25x=50X-+=7+
25x÷25=50÷25 X=7.75
X=2 )(111 3x+7=28(115) 1.2x-8=4
3x+7-7=28-7
1.2x-8+8=4+83x=21
1.2x=12
3x÷3=21÷3
1.2x÷1.2=12÷1.2 X=7.
)
有答案题(五年级解方程练习题180
2x÷2=4÷2 X=10
X=2
(116) 3x-8=31
(120) 2x+16=19
3x-8+8=31+82x+16-16=19-163x=39
2x=3
3x÷3=39÷3
2x÷2=3÷2 X=13
X=1.5(117)
6x+6=12
(121) 5x+8=19 6x+6-6=12-6
5x+8-8=19-8 6x=6
5x=11 X=15x÷5=11÷5
(118) 3x-3=3X=2.2 3x-3+3=3+3
(122) 14-6x=8
3x=6
14-6x+6x=8+6x3x÷3=6÷3
6x+8-8=14-8X=2
6x=6 (119) 5x-3x=4
X=1 2x=4.
)
有答案题(五年级解方程练习题180
2x+1-1=9-1 (123) 15+6x=27
2x=8 6x+15-15=27-15
2x÷2=8÷2
6x=12X=46x÷6=12÷6
(127) 4+5x=9 X=2
5x+4-4=9-4 (124) 5-8x=4
5x=55-8x+8x=4+8x
X=1 8x+4-4=5-4
(128) 10-x=8 8x=1
X=10-8 8x÷8=1÷8X=2 X=0.125(129) 8x+9=17
(125) 7x+8=15
8x+9-9=17-97x+8-8=15-8
7x=7 8x=8 X=1X=1
(126) 9-2x=1(130)
9+6x=15 6x+9-9=15-9 9-2x+2x=1+2x
)
有答案题(五年级解方程练习题180
(134) 6x-7=28 6x=6
6x-7+7=28+7 X=1
6x=36 (131)
x+9x=4+76x÷6=36÷610x=11
X=6 10x÷10=11÷10
X=1.1 (135) 7x-9=20 (132) 2x+9=17
7x-9+9=8+20 2x+9-9=17-9
7x=28 2x=8 7x÷7=28÷7
2x÷2=8÷2 X=4 X=4 (136) x-56=1 (133)
8-4x=6
X=56+1 8-4x+4x=6+4x X=57 4x+6-6=8-6 (137) 8-7x=1
4x=2
8-7x+7x=1+7x 4x÷2=2÷4 7x+1-1=8-1
X=0.5.
)
有答案题(五年级解方程练习题180
9x÷9=18÷9 7x=7
X=2
X=1
(142) 4x-18=14
(138)
x-30=124x-18+18=14+18
X-30+30=12+304x=32
X=424x÷4=32÷4
(139)
6x-21=21X=8
6x-21+21=21+21(143) 5x+9=11
6x=425x+9-9=11-9
6x÷6=42÷65x=2
X=75x÷5=2÷5
(140) 6x-3=6X=0.4
6x-3+3=6+3(144) 17-2x=11
6x=9
17-2x+2x=11+2x 6x÷6=9÷6 2x+11-11=17-11 X=1.5 2x=6
(141)
9x=18 2x÷2=6÷2.
)
有答案题(五年级解方程练习题180
(149) 3X +0.5=5 X=3
3x+0.5-0.5=5-0.5 (145) x+4+8=23
3x=4.5
X+12=233x÷3=4.5÷3X=23-12
X=1.5 X=11
(150) 3.5×2= 4 x (146) 7x-12=9
4x=77x-12+12=9+12
4x÷4=7÷4 7x=21
X=1.75 7x÷7=21÷7
(151) 26×1.5= 2x
X=32x=39 (147) X-5.7=2.152x÷2=39÷2
x=5.7+2.15
X=18 X=7.85
(152)
0.5×16―16×0.1=4x(148) 5X-2X=18
3x=184x=6.4
3x÷3=18÷34x÷4=6.4÷4 X=1.6 X=6.
)
有答案180题(五年级解方程练习题
6X+54-54=180-54 -X=0.402
(153)
9.266X=126
X=9.26-0.4026X÷6=126÷6X=8.858
X=21(154)
36.9÷X=0.3
(158) 9X=36.9÷0.3 +4x=40
4X+9-9=40-9 X=123
4X=31 (155) X÷0.5=2.6
4X÷4=31÷4 X=0.5×2.6
X=7.75X=1.3
(159) 0.2x 80-0.4+0.5=3.7 =-(156)
935x0.2X
-0.5+0.5-0.4+0.4=3.7-0.5+093-5X+5X=80+5X
.4
5X+80-80=93-800.2X=3.6 5X=130.2X÷0.2=3.6÷0.2
5X÷
5=13÷5X=18 X=2.6(160) 9.4x-0.4x=16.2
54=(157) 180-6x
9X=16.2 180-6X+6X=54+6X.
)
题(有答案五年级解方程练习题180
(164) 18x-14x=12
9X÷9=16.2÷9
4X=12 X=1.8
4X÷4=12÷4
4x(161) 92-=20
X=3 92-4X+4X=20+4X
(165)
3 x-42÷14=154X+20-20=92-20
3X-3=154X=72 4X÷4=72÷4 3X-3+3=15+3 3X=18(162) X=18
3X÷3=18÷3 (163) 7x÷6=1.4 7x÷6×6=1.4×6X=6
7X=8.4 +4x=56(166) 12 7X÷7=8.4÷7
4X+12-12=56-12 X=1.2
4X=44 34x=1(163) 16x+
4X÷4=44÷4 50X=1 X=11 50X÷50=1÷50
X=0.02 14x=12-(167) 22.
)
有答案题(五年级解方程练习题180
22-14X+14X=12+14X(172)
3x-8=16
14X+12-12=54-123X-8+8=16+8
14X=423X=24
14X÷14=42÷143X÷3=24÷3
X=3X=8
(168) X+8.3=10.7(173) 3x+9=27
X=10.7-8.33X+9-9=27-9
X=2.43X=18
(169)
5x =303X÷3=18÷3
5X÷5=30÷5X=6
X=6(174)
5.3+7x=7.4
(170) x-5.6=9.47X+5.3-5.3=7.4-5.3
X=5.6+9.4 7X=2.1 X=15 7X÷7=2.1÷7 (171)
x÷0.8=90 X=0.3
X=0.8×90 (175) 3x÷5=4.8
X=72.
五年级解方程练习题180题(有答案)
3X=4.8×5
X=9
(179) 4×8+2x=36 3X=242X+32=363X÷3=24÷3
2X+32-32=36-32 X=82X=4 (176) X-0.8X=6
2X÷2=4÷2 0.2X=6
X=2 0.2X÷0.2=6÷0.2(180)
(x-X=302)÷3=7
X-2=3×7 (177)
12x+8x=4.8X-2=21 20X=4.8X=23 20X÷20=4.8÷
20
(181) x÷5+9=21X=24
X÷5=21-9 (178)
7(x-2)=49
X÷5=12 7X-14=49
X=12×57X-14+14=49+14
X=60 7X=63
x)÷5=30(182) (300- 7X÷7=63÷7.
五年级解方程练习题180题(有答案)
X=30×5300-(184)
41-3x=17
300-X=15041-3X+3X=17+3X
X=300-1503X+17-17=41-17
X=1503X=24
1.3(183) 91÷x =3X÷3=24÷3
X=91÷1.3 X=8
X=70