Q: Solve 56 = -67*v + 169 + 88 for v.

A: 3

Q: Solve 9*r - 1147 = -39*r - 427 for r.

A: 15

Q: Solve 3*s - 79 = -82 for s.

A: -1

Q: Solve 118*u + 23*u + 36456 = 51*u - 302*u for u.

A:
-93