Write down the solution for this math problem: Solve 3251 = -159*o - 173*o - 6377 for o.
answer: -29

Write down the solution for this math problem: Solve -25*z + 104 + 71 = 0 for z.
answer: 7

Write down the solution for this math problem: Solve 590*m - 599*m = 99 for m.
answer: -11

Write down the solution for this math problem: Solve 75*a - 39*a - 39*a = 6 for a.
answer:
-2