Write down the solution for this math problem: Solve 31*g + 4 = 29*g for g.
answer: -2

Write down the solution for this math problem: Solve 0 = 77*d + 80*d + 102*d + 56*d + 9135 for d.
answer: -29

Write down the solution for this math problem: Solve 817*o + 235680 = -1744*o - 496*o - 871*o for o.
answer: -60

Write down the solution for this math problem: Solve -3*r = -25*r - 66 for r.
answer:
-3