Q: Solve 0 = -3*p - 2*p + 5 for p.

A: 1

Q: Solve -12*f - 10 - 50 = 0 for f.

A: -5

Q: Solve -150*y - 21*y = 1171 + 197 for y.

A: -8

Q: Solve -2367 - 1305 = -21354*r + 21558*r for r.

A:
-18