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

A: -3

Q: Solve 15 - 51 = 9*p for p.

A: -4

Q: Solve 330*t = 315*t + 30 for t.

A: 2

Q: Solve 5*v - 8 = -18 for v.

A:
-2