solve for w

Solve for w over the real numbers:
abs(w + 4) = 3

Split the equation into two possible cases:
w + 4 = 3 or w + 4 = -3

Subtract 4 from both sides:
w = -1 or w + 4 = -3

Subtract 4 from both sides:
w = -1       or         w = -7

W= -1,-7