Write down the solution for this math problem: Solve -571 = 3317*u - 3888 for u.
answer: 1

Write down the solution for this math problem: Solve 399486*g - 399458*g = -392 for g.
answer: -14

Write down the solution for this math problem: Solve 1951*f = -6768*f + 976*f - 425865 for f.
answer: -55

Write down the solution for this math problem: Solve 68*u - 10 = 58*u for u.
answer:
1