Q: Solve 20*q = 7*q for q.

A: 0

Q: Solve -4493*p + 928*p + 124775 = 0 for p.

A: 35

Q: Solve 3*z + 4*z = -21 for z.

A: -3

Q: Solve -9 = 3*h + 6*h for h.

A:
-1