Write down the solution for this math problem: Solve 699*t - 31*t - 26720 = 0 for t.
answer: 40

Write down the solution for this math problem: Solve -2*b - 121 = -111 for b.
answer: -5

Write down the solution for this math problem: Solve 0 = 58*h - 17 - 215 for h.
answer: 4

Write down the solution for this math problem: Solve 15*k = -20*k - 105 for k.
answer:
-3