Write down the solution for this math problem: Solve 3*d - 32 + 20 = 0 for d.
answer: 4

Write down the solution for this math problem: Solve -3 = 4*x + 25 for x.
answer: -7

Write down the solution for this math problem: Solve -2667 = -245*y + 3948 for y.
answer: 27

Write down the solution for this math problem: Solve -20*b - 6 = -22*b for b.
answer:
3