Q: Solve -153 - 85 = 59*b + 234 for b.

A: -8

Q: Solve -25*v = -33*v - 32 for v.

A: -4

Q: Solve -32*r - 109 - 429 + 90 = 0 for r.

A: -14

Q: Solve -12*u - 21 = 9*u for u.

A:
-1