Hey there!
-42 + w = 5
w - 42 = 5
ADD 42 to BOTH SIDES
w - 42 + 42 = 5 + 42
CANCEL out: -42 + 42 because it gives you 0
KEEP: 5 + 42 because it helps you solve for the w-value
NEW EQUATION: w = 5 + 42
SIMPLIFY IT!
w = 47
Therefore, your answer is: w = 47
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)