Write down the solution for this math problem: Solve 710*a - 1852 = 258*a - 10972 - 4440 for a.
answer: -30

Write down the solution for this math problem: Solve 0*a = 5*a + 5 for a.
answer: -1

Write down the solution for this math problem: Solve 25*s - 225 = -0*s for s.
answer: 9

Write down the solution for this math problem: Solve 0 = 32*q - 19*q + 91 for q.
answer:
-7