Write down the solution for this math problem: Solve -6*j - 13 + 7 = 0 for j.
answer: -1

Write down the solution for this math problem: Solve -8*o + 315 + 405 = 7*o - 0*o for o.
answer: 48

Write down the solution for this math problem: Solve -39*g = -27*g - 24 for g.
answer: 2

Write down the solution for this math problem: Solve 168 - 40 = 102*w - 38*w for w.
answer:
2