[x-12]除以4=4.5 用方程
问题描述:
[x-12]除以4=4.5 用方程
答
(X-12)÷4=4.5
x-12=4.5×4=18
x=18+12=30
答
(x-12)/4=4.5
x-12=4.5*4
x-12=18
x=12+18
x=30
答
(x-12)÷4=4.5
x-12=18
x=18+12
x=30