Q: Solve 0 = -30*v - 637 + 277 for v.

A: -12

Q: Solve 52 = -7*v - 11 for v.

A: -9

Q: Solve 4730 - 4583 = -21*x for x.

A: -7

Q: Solve -151*x + 144 = -133*x for x.

A:
8