Write down the solution for this math problem: Solve -45*b = 162 + 108 for b.
answer: -6

Write down the solution for this math problem: Solve 9355*d - 9321*d = 476 for d.
answer: 14

Write down the solution for this math problem: Solve -13*s + 14*s = -1 for s.
answer: -1

Write down the solution for this math problem: Solve 291*l = -1676682 + 1681629 for l.
answer:
17