Write down the solution for this math problem: Solve -196*o + 6520 + 625 = -6771 for o.
answer: 71

Write down the solution for this math problem: Solve 662*x + 615 = -656*x + 1277*x for x.
answer: -15

Write down the solution for this math problem: Solve 21*c - 25*c - 8 = 0 for c.
answer: -2

Write down the solution for this math problem: Solve 1982*o = 2229*o + 14820 for o.
answer:
-60