Respuesta :

Answer:

a = -5

Step-by-step explanation:

-3a + 7 = 22

Subtract 7 from both sides.

-3a = 15

Divide both sides by -3.

a = -5

Answer:

- 5

Step-by-step explanation:

Step 1:

- 3a + 7 = 22     Equation

Step 2:

- 3a = 15      Subtract 7 on both sides

Step 3:

a = 15 ÷ - 3      Divide

Answer:

a = - 5

Hope This Helps :)