Respuesta :

Answer: s = 8

Step-by-step explanation:

Add 28 to both sides of the equation

4s - 28 + 28 = 4 + 28

Then simplify

4s = 32

Divide both sides of the equation by the same term

4s = 32

4s/4 = 32/4

Simplify again

s = 8

Solution

s = 8