Respuesta :

Finding the value of w

We want to find the value of w that makes m = 8 in the equation:

m = w - 4

We just replace m by 8 in the equation:

m = w - 4

8 = w - 4

We add 4 both sides of the equation:

8 + 4 = w - 4 + 4

8 + 4 = w

12 = w

Then

if w = 12, then m = 8