Respuesta :

Answer:

w = 20

Step-by-step explanation:

We need to solve the equation, to find the value of w:

w - 8 = 12 - we need to add 8 to both sides

w - 8 + 8 = 12 + 8 - the -8 and the +8 on the left hand side cancel out to give just w

w = 20