(x-28)+四分之三x=42怎么解?
问题描述:
(x-28)+四分之三x=42怎么解?
答
x-28+3\4x=42
7\4x-28=42
7\4x=70
x=40
(x-28)+四分之三x=42怎么解?
x-28+3\4x=42
7\4x-28=42
7\4x=70
x=40