3(x+3)=12 2(x-3)=8 3(x-8)=12 0.5(x-8)=12 1.2(x-2)=1.44 3.2(x-8)=6.4

问题描述:

3(x+3)=12 2(x-3)=8 3(x-8)=12 0.5(x-8)=12 1.2(x-2)=1.44 3.2(x-8)=6.4

3(x+3)=12
x+3=4
x=1
2(x-3)=8
x-3=4
x=7
3(x-8)=12
x-8=4
x=12
0.5(x-8)=12
x-8=24
x=32
1.2(x-2)=1.44
x-2=1.2
x=3.2
3.2(x-8)=6.4
x-8=2
x=10