Question

Решите уравнение 4-(2x-1)=5x-4

Answer 1

4 - 2x + 1 = 5x - 4
- 2x - 5x = - 4 - 5 
- 7x = - 9 
x = 9/7 = 1 целая 2/7 

Answer 2

4-2х-1=5х-4
4-2х-1-5х+4=0
-7х+7=0
-7х=-7|:(-7)
х=1