(3/4)x=28-x 怎么解方程?
问题描述:
(3/4)x=28-x 怎么解方程?
答
3/4x+x=28
7/4x=28
∴7x=112
∴x=16
祝好,再见
答
先移项(3/4+1)x=28,的x=28/(7/4)=16
答
(3/4)x=28-x 3x=112-4x 7x=112 x=16
答
(3/4)x=28-x
(3/4)x+x=28
7/4x=28
x=16