Q: Solve 2*q + 10*q = -15*q + 9*q - 270 for q.

A: -15

Q: Solve 2031 = -82*i + 2113*i for i.

A: 1

Q: Solve 13*h - 7*h = 3*h for h.

A: 0

Q: Solve 75 = 18*p - 18*p - 15*p for p.

A:
-5