x-1/2x=7.2这个怎么算?
问题描述:
x-1/2x=7.2这个怎么算?
答
x-1/2x=7.2
1/2x=7.2
x=7.2*2
x=14.4
x-1/2x=7.2这个怎么算?
x-1/2x=7.2
1/2x=7.2
x=7.2*2
x=14.4