Write down the solution for this math problem: Solve 57*l = -84*l for l.
answer: 0

Write down the solution for this math problem: Solve 59721*s - 59986*s = 9010 for s.
answer: -34

Write down the solution for this math problem: Solve 9 - 33 = -6*w for w.
answer: 4

Write down the solution for this math problem: Solve 63*v = 76*v - 91 for v.
answer:
7