Question

Resolva a seguinte inequação: 5x+40=2+x

Answer 1

5x + 40 = 2 + x 
 5x - x= -38
4x=-38
x=-19/2

Answer 2

-40 + 5x + x = 2 + -1x + x
-40 + 6x = 2 + -1x + x
- 40 + 6x = 2 + 0
-40 + 6x = 2
- 40 + 40 + 6x = 2 + 40
0 + 6x = 2 + 40
6x = 42
x= 42/6
x = 7