0.2(x-3)=0.4(x-6)

问题描述:

0.2(x-3)=0.4(x-6)

x-3=2x-12
9=x
x=9能更长一点吗0.2(x-3)=0.4(x-6)x-3=2(x-6)x-3=2x-1212-3=2x-x9=xx=9