五年级奥数解方程50题
动画场景图片-惨白的意思
解方程:(53道)
(0.5+x)+x=9.8÷2
2(X+X+0.5)=9.8
3200=440+5X+X
7.5+2X=15
91÷x=1.3
18(x-2)=270
12x=300-4x
7x+5.3=7.4
7(6.5+x)=87.5
0.1(x+6)=3.3×0.4
(27.5-3.5)÷x=4
x÷5+9=21
48-27+5x=31
10.5+x+21=56
x+2x+18=78
(200-x)÷5=30
(x-140)÷70=4
x+19.8=25.8
75.6÷x=12.6
5x+12.5=32.3
5(x+8)=102
3(x+3)=50-x+3
0.3×7+4x=12.5
x÷1.5-1.25=0.75
4x-1.3×6=2.6
6x+12.8=15.8
150×2+3x=690
2(2.8+x)=10.4
(x-3)÷2=7.5
13.2x+9x=33.3
3(x+2.1)=10.5
13(x+5)=169
3.4x-48=26.8
1.5(x+1.6)=3.6
2(x-3)=5.8
9x+4×2.5=91
4.2 x+2.5x=134
3.5×2= 4.2+x
26×1.5= 2x+10
0.5×16―16×0.2=4x
6.7x-60.3=6.7
0.5×16―16×0.1=4x
36.9÷X=0.3
X÷0.5=2.6
0.2x-0.4+0.5=3.7
9.4x-0.4x=16.2
7x÷6=1.4
3 x-42÷14=15
7(x-2)=49
4×8+2x=36
(x-2)÷3=7
x÷5+9=21
(300-x)÷5=30
解方程组:
4x3y6
2xy2
y=2x-1
7x-3y=4
3x2y
5x2y5
2x3
y12
3x4y17
3x2y7
x2y5
x2
3xy1<
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y7x-1
15x2y5
4x3y6
2xy4