Write down the solution for this math problem: Solve -288*r + 267*r = 261*r + 243*r - 1575 for r.
answer: 3

Write down the solution for this math problem: Solve -14*g = -7*g - 21 for g.
answer: 3

Write down the solution for this math problem: Solve -8455*p = -6496*p - 101868 for p.
answer: 52

Write down the solution for this math problem: Solve 25 - 178 = 51*x for x.
answer:
-3