486-3.6X=3.5(X-15)怎么算
问题描述:
486-3.6X=3.5(X-15)怎么算
刚刚打错不好意思!更正回来
486-3.6X=3.6(X-15)
答
486-3.6x=3.5x-52.5
7.1x=538.5
x=75.845