Respuesta :

Answer:

Step-by-step explanation:

4x+7= -21

    -7   -7

  4x= -28

   x = -7

Answer:

x = -7

Step-by-step explanation:

4x+7 = -21

    -7    -7

   4x = -28  (Divde by four on both sides)

     x = -7

Hope this helps!