Write down the solution for this math problem: Solve 52 = 287*q - 300*q for q.
answer: -4

Write down the solution for this math problem: Solve -1316 + 1561 + 1577 + 1958 = -90*v for v.
answer: -42

Write down the solution for this math problem: Solve 95*r = -8*r - 11*r + 1368 for r.
answer: 12

Write down the solution for this math problem: Solve -5*f + 1436 = 1416 for f.
answer:
4