Write down the solution for this math problem: Solve -66*l + 36*l = 150 for l.
answer: -5

Write down the solution for this math problem: Solve -12*w = -9*w for w.
answer: 0

Write down the solution for this math problem: Solve 0 = 9*y + 27*y - 11*y for y.
answer: 0

Write down the solution for this math problem: Solve 171*v = -447 - 750 for v.
answer:
-7