Problem: -4(3+w)=-27-w
It was not solved
-4(3 + w) = -27 - w
-12 - 4w = -27 - w
-12 - 4w + 12 = -27 - w + 12
-4w = -15 - w
-4w + w = -15 - w + w
-3w = -15
-3w/-3 = -15/-3
w = 5
Check.
-4(3 + w) = -27 - w
-4(3 + 5) = -27 - 5
-4(8) = -27 - 5
-32 = -32
Answer: w = 5