Question

X +5 = 13
3x - 2 = 2x + 6
5x + 8 = 4x + 15
7x + 13 = 4x + 28
x + 2x = x + 8​

Answer 1

Respuesta:

x +5=13

x: 13 - 5

3x-2=2x + 6

3x - 2x : 6 + 2

x: 8

5x + 8 = 4x + 15

5x - 4x = 15 - 8

x= 7

7x + 13 = 4x + 28

7x - 4x = 28 - 13

3x= 15

x= 5

x + 2x = x + 8

- 2x = 8

x = - 4