Write down the solution for this math problem: Solve -42 = -5*a - 37 for a.
answer: 1

Write down the solution for this math problem: Solve 12*d - 143169 = -143409 for d.
answer: -20

Write down the solution for this math problem: Solve -37*o = -2*o + 210 for o.
answer: -6

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