Q: Solve -9*y - 40 = -y for y.

A: -5

Q: Solve 0 = -7*q - 91 + 133 for q.

A: 6

Q: Solve -42*y + 530 = -129*y - 1210 for y.

A: -20

Q: Solve -541*s + 1034*s - 4753 = 542*s for s.

A:
-97