Write down the solution for this math problem: Solve -2*x + 31 = 25 for x.
answer: 3

Write down the solution for this math problem: Solve -30593 + 33427 = 109*u for u.
answer: 26

Write down the solution for this math problem: Solve -14*a = -339 - 344 + 669 for a.
answer: 1

Write down the solution for this math problem: Solve 4 = 3*t + 19 for t.
answer:
-5