Write down the solution for this math problem: Solve -414 = -65*u + 41 for u.
answer: 7

Write down the solution for this math problem: Solve 0 = -36*w - 45*w + 40*w for w.
answer: 0

Write down the solution for this math problem: Solve -14*l = -4*l - 50 for l.
answer: 5

Write down the solution for this math problem: Solve 33*x = 54*x + 42 for x.
answer:
-2