Write down the solution for this math problem: Solve -90*l + 210*l = 863 + 1057 for l.
answer: 16

Write down the solution for this math problem: Solve -4255 = 201*y + 868*y - 85499 for y.
answer: 76

Write down the solution for this math problem: Solve 0 = -9*h + 15*h - 18 for h.
answer: 3

Write down the solution for this math problem: Solve 129*f + 45 = -213 for f.
answer:
-2