Q: Solve 2*q + 3*q - 120 = -65 for q.

A: 11

Q: Solve 9 = 45*r - 36*r for r.

A: 1

Q: Solve -3423 - 2517 = -88*s - 92*s for s.

A: 33

Q: Solve 11*z = 7*z + 18*z - 98 for z.

A:
7