Write down the solution for this math problem: Solve -3 = 4*d - 7*d for d.
answer: 1

Write down the solution for this math problem: Solve -146*f + 93*f = 219*f + 23516 - 1756 for f.
answer: -80

Write down the solution for this math problem: Solve -3*c - 4 = -8*c + 9*c for c.
answer: -1

Write down the solution for this math problem: Solve -446*v - 281 = 1603 + 10158 for v.
answer:
-27