15×(x-2.6)=7.5 怎么算?
问题描述:
15×(x-2.6)=7.5 怎么算?
答
15×(x-2.6)=7.5
x-2.6=0.5
x=3.1
15×(x-2.6)=7.5 怎么算?
15×(x-2.6)=7.5
x-2.6=0.5
x=3.1