Write down the solution for this math problem: Solve 161*n + 36*n - 14940 = 27*n + 4*n for n.
answer: 90

Write down the solution for this math problem: Solve -4057*y - 518 = -4131*y for y.
answer: 7

Write down the solution for this math problem: Solve 11599*x - 312 = 11560*x for x.
answer: 8

Write down the solution for this math problem: Solve 60*b - 72 = -51*b + 87*b for b.
answer:
3