Hey there!
5w = -25
DIVIDE 5 to BOTH SIDES
5w/5 = -25/5
CANCEL out: 5/5 because it give you 1
KEEP: -25/5 because it help solve for the w-value
NEW EQUATION: w = -25/5
SIMPLIFY IT!
w = -5
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)