Write down the solution for this math problem: Solve -2292 = -35*l - 43*l + 126 for l.
answer: 31

Write down the solution for this math problem: Solve 0 = -100*d - 212 - 288 for d.
answer: -5

Write down the solution for this math problem: Solve 3*r + 12 = 15 for r.
answer: 1

Write down the solution for this math problem: Solve 132*b - 871 = 317 for b.
answer:
9