Question

решите уравнение СРОЧНО !!!!!!!!!!!!!!!!!!!!!! 1,2х+7=2х+3

Answer 1

1,2х - 2х = 3 - 7
- 0,8х = - 4
       х = 5

Answer 2

1,2х-2х=-7+3
-0.8х=-4
х=-4:(-0.8)
х=5