Respuesta :

Answer:

-3

Step-by-step explanation:

5x + 15 = 1x + 3

Add -1x and -15 on both sides.

5x - 1x = 3 - 15

4x = -12

Divide 4 into both sides.

4x/4 = -12/4

x = -3

The solution for the equation is x = -3.