Hey there!
-3x = -33
DIVIDE -3 to BOTH SIDES
-3x/-3 = -33/-3
CANCEL out: -3/-3 because it gives you 1
KEEP: -33/-3 because it gives you the x-value
NEW EQUATION: x = -33/-3
SIMPLIFY IT!
x = 11
Therefore, your answer is: x = 11
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)