Write down the solution for this math problem: Solve 112*u = -244 + 1514 + 4218 for u.
answer: 49

Write down the solution for this math problem: Solve -195*i + 2 = -194*i for i.
answer: 2

Write down the solution for this math problem: Solve -2*s + 14*s - 72 = 0 for s.
answer: 6

Write down the solution for this math problem: Solve 729*n + 649*n - 111372 = 130*n + 27156 for n.
answer:
111