Write down the solution for this math problem: Solve 200*m - 25*m = -81*m for m.
answer: 0

Write down the solution for this math problem: Solve -g + 266 = 4*g + 326 for g.
answer: -12

Write down the solution for this math problem: Solve 26*f + 15 = 21*f for f.
answer: -3

Write down the solution for this math problem: Solve 15*o + 18*o = 66 for o.
answer:
2