作业帮解方程:4x-2=3x+1 x-7=11-x x=1/4x+6 12+7y=-3y+2 1/2m-3=m/3-2
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解方程:4x-2=3x+1 x-7=11-x x=1/4x+6 12+7y=-3y+2 1/2m-3=m/3-2
解方程:4x-2=3x+1 x-7=11-x x=1/4x+6 12+7y=-3y+2 1/2m-3=m/3-2
解方程:4x-2=3x+1 x-7=11-x x=1/4x+6 12+7y=-3y+2 1/2m-3=m/3-2
⑴4x-2=3x+1
4x-3x=2+1
∴x=3
⑵x-7=11-x
x＋x=7＋11
2x=18
∴x=9
⑶x=1/4x+6
x－1/4x＝6
3/4X=6
∴X=8
⑷12+7y=-3y+2
7y＋3y＝﹣12+2
10y=﹣10
∴y=﹣1
⑸1/2m-3=m/3-2
1/2m-m/3＝3-2
m/6=1
∴m=6
4x-2=3x+1
4x-3x=2+1
x=3
x-7=11-x
x+x=7+11
2x=18
x=9
x=1/4x+6
x-1/4x=6
3/4x=6
x=8
12+7y=-3y+2
7y+3y=2-12
10y=-10
y=-1
1/2m-3=m/3-2
1/2m-m/3=3-2
1/6m=1
m=6
解方程x÷7=2.1X3-2