解方程,2.4x—x=2.4怎么写?

问题描述:

解方程,2.4x—x=2.4怎么写?

(2.4-1)X=2.4 1.4X=2.4

1.2x=4.8

(2.4-1)x=2.4
1.4x=2.4
x=2.4/1.4
=12/7

2.4x-x=2.4
1.4x=24
14x=24
7x=12
x=12/7

2.4x-x=2.4
x-x=2.4-2.4
x=0

2.4x-x=1.4x=2.4
解得:x=12/7

2.4x—x=2.4
1.4x=2.4
1.4x÷1.4=2.4÷1.4
x=7分之12

1.4x=2.4
14x=24
x=12/7

2.4x-x=2.4
(2.4-1)x=2.4
1.4x=2.4
x=2.4/1.4=12/7