[x-12]除以4=4.5 用方程

问题描述:

[x-12]除以4=4.5 用方程

(X-12)÷4=4.5
x-12=4.5×4=18
x=18+12=30

(x-12)/4=4.5
x-12=4.5*4
x-12=18
x=12+18
x=30

(x-12)÷4=4.5
x-12=18
x=18+12
x=30