Write down the solution for this math problem: Solve -72*b + 18*b + 768 = -6*b for b.
answer: 16

Write down the solution for this math problem: Solve 0 = 16*w - 51 - 29 for w.
answer: 5

Write down the solution for this math problem: Solve 1080 = -955*d + 1874*d - 964*d for d.
answer: -24

Write down the solution for this math problem: Solve -84 = 14*s - 2*s for s.
answer:
-7