小学六年级方程与简单方程组_提高练习纯方程40题(一元一次方程奥数题含答案)1
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小学六年级方程与简单方程组 提高练习纯方程(一元一次方程奥数题含答案)
(1) 2(x-3)+3(2x-1)=5(x+3)
(2) 7(3+x)-2(x+5)=81
(3) 8x-2=7x+9
(4)
(x+4)÷3=2x-7
(5) (x-5)÷2=3x-10
(6)
5x+2y=13
7x+6y=23
(7)
5(2x-3)+9(10x-8)=113
(8)
100-4(8-3x)=200
(9)
4.1x+221.4=4.25x+216
(10)
15(3x+4)=100-35x
(11) 43-2(5+3x)=3+6(x-1)
(12) (19-2x)÷5=x+1
(13) 27+x=2[19+(20-x)]
(14) 3(3x-2)=10-0.5(x+3.5x)
(15)
0.6x+400
x+400
=
2
3
(16)
4x+9y=97
5x+5y=65
(17) 4x+6=22-12x
(18) 5.5x+21-x=50-4.5x-11
(19) 2(3x-4)+7(4-x)=4x
(20)
4(x-2)+20x-4=5(1-2x)
(21)
x+y=8
2x+4y=26
(22)
0.2x+0.3y=4.6
0.7x-0.5y=0.6
(23) 19x-3(5x-3)=73
(24)
40-3x=52-6x
(25)
28-(7+5x)=4+2(2+4x)
(26)
18(5y-9)=27y-36
(27)
14
3x-2
=
7
2
(28)x×x=(10+x)( x-6)
(29)1260-60x=860+40x
(30)(88+96+98+x)÷4-3=x
(31)(15x+10)+x=330
(32)(5x-10)÷2+x=100
(33)6x÷2+(x+4)×4÷2=(6+4)×4÷2
(34)
x+x+y=60÷3
x+x+2y=60÷2
(35) 2x+4(30-x)=88
(36) 89+92+x+5=3x
(37)
25x+10y=65
7x+6y=23
(38)(19-2x)÷25=(x+1 )÷5
(39) (40-3x)÷2=27-3x
(40)
28
6x-4
=
49
14
小学六年级方程与简单方程组 提高练习纯方程(一元一次方程奥数题)答案
(1) 8
(2) 14
(3) 11
(4) 5
(5)
3
(6) X=2;y=1.5
(7) 2
(8) 11
(9) 36
(10) 0.5
(11) 3
(12) 2
(13) 17
(14) 1.5
(15) 2000
(16) X=4;y=9
(17) 1
(18) 2
(19) 4
(20) 0.5
(21) 3,5
(22)
8,10
(23) 16
(24) 4
(25) 1
(26) 2
(27) 2
(28) 15
(29) 4
(30) 93
(31) 20
(32) 30
(33)
2.4
(34) 6,8
(35) 16
(36) 93
(37) X=2;y=1.5
(38) 2
(39) 4
(40)
2