3(x+1.2)=5x怎么做
问题描述:
3(x+1.2)=5x怎么做
答
3x+3.6=5x
3.6=5x-3x
3.6=2x
x=1.8
3(x+1.2)=5x怎么做
3x+3.6=5x
3.6=5x-3x
3.6=2x
x=1.8