11.5%x - 1.5%x
问题描述:
11.5%x - 1.5%x
答
11.5%x-1.5%x=7
10%x=7
x=7÷10%
x=70
11.5%x - 1.5%x
11.5%x-1.5%x=7
10%x=7
x=7÷10%
x=70