(5加7)乘(y减2)除2等于36(要列出算式)
问题描述:
(5加7)乘(y减2)除2等于36(要列出算式)
答
(5+7)*(y-2)/2=36
(5+7)*(y-2)=36*2
(5+7)*(y-2)=72
y-2=72/12
y=72/12+2
y=8