2.4x-26=x

问题描述:

2.4x-26=x

2.4x-26=x2
(2.4-2)x=26
0.4x=26
x=26÷0.4
x=65

2.4x-26=x+2
2.4x-x=2+26
0.4x=28
x=28/0.4
x=70