Write down the solution for this math problem: Solve 80 = -47*s + 57*s for s.
answer: 8

Write down the solution for this math problem: Solve 9246 = -884*s + 1080 - 7746 for s.
answer: -18

Write down the solution for this math problem: Solve 29*d + 184 - 68 = 0 for d.
answer: -4

Write down the solution for this math problem: Solve 0 = 5*b + 11 - 21 for b.
answer:
2