Write down the solution for this math problem: Solve -25*z = -1020 + 1070 for z.
answer: -2

Write down the solution for this math problem: Solve 37*o + 28 = 9*o for o.
answer: -1

Write down the solution for this math problem: Solve 18*s = 258671 - 258509 for s.
answer: 9

Write down the solution for this math problem: Solve 8*b - 10 = 6*b for b.
answer:
5