Respuesta :

Answer:

s = -3

Step-by-step explanation:

1 = 4s + 13

rewrite

4s + 13 = 1

4s = 1 - 13

4s = -12

 s = -3

4x+13=1
4x+13-13=1-13
4x=-12
x=-12÷4
x=-3