Math

5x +  7 = 3x - 5         | + 5

5x +13 = 3x              | / 3

(5/3)x + 13/3 = x       | - (5/3)x

13/3  = -(1/3)x          | *(- 3)

- 37/6  = x

5x + 7 = 3x - 5    subtract 3x from both sides

2x + 7  = -5          subtract 7 from both sides

2x  = -12           divide both sides by 2

x = -6