Write down the solution for this math problem: Solve d - 22 + 17 = -20 for d.
answer: -15

Write down the solution for this math problem: Solve 17*x - 2*x = -63*x + 546 for x.
answer: 7

Write down the solution for this math problem: Solve -3*c + 9*c + 319 = 35*c for c.
answer: 11

Write down the solution for this math problem: Solve 860 = 47*f + 39*f for f.
answer:
10