Write down the solution for this math problem: Solve u - 4*u = u for u.
answer: 0

Write down the solution for this math problem: Solve 272299*u - 272297*u - 28 = 0 for u.
answer: 14

Write down the solution for this math problem: Solve -739*x + 1555 = 9684 for x.
answer: -11

Write down the solution for this math problem: Solve 0 = -2*s + s for s.
answer:
0