1.x-3=6x
5x=-3
x=-0.6
2.x:5=(x-1):4
5(x-1)=4x
5x-5=4x
x=5
1.2x-0.7=0,则12x --------
1.2x-0.7=0 (乘10得)
12x-7=0
则:12x=7