(3/4)x=28-x 怎么解方程?

问题描述:

(3/4)x=28-x 怎么解方程?


3/4x+x=28
7/4x=28
∴7x=112
∴x=16
祝好,再见

先移项(3/4+1)x=28,的x=28/(7/4)=16

(3/4)x=28-x 3x=112-4x 7x=112 x=16

(3/4)x=28-x
(3/4)x+x=28
7/4x=28
x=16