Write down the solution for this math problem: Solve -4207*q - 6663*q = -2740*q - 138210 for q.
answer: 17

Write down the solution for this math problem: Solve 0 = -140*q + 79*q - 793 for q.
answer: -13

Write down the solution for this math problem: Solve -320*l - 13226 = 458*l for l.
answer: -17

Write down the solution for this math problem: Solve 30*b - 363 - 242 = -25*b for b.
answer:
11