Write down the solution for this math problem: Solve -39*v + 137 = -58 for v.
answer: 5

Write down the solution for this math problem: Solve 67*b - 1874 - 1114 = 316*b for b.
answer: -12

Write down the solution for this math problem: Solve 161*q + 3820 = -188*q - 1415 for q.
answer: -15

Write down the solution for this math problem: Solve -2225*a + 14026 = -30474 for a.
answer:
20