Write down the solution for this math problem: Solve -153*q + 15239 = -316*q + 2340*q for q.
answer: 7

Write down the solution for this math problem: Solve 425 = 5*q + 410 for q.
answer: 3

Write down the solution for this math problem: Solve -26*u - 319 = -24*u - 31*u for u.
answer: 11

Write down the solution for this math problem: Solve 93*k + 1350 = -132*k + 90*k for k.
answer:
-10