Write down the solution for this math problem: Solve 509*g = -98*g - 18210 for g.
answer: -30

Write down the solution for this math problem: Solve 28*z - 112 = 44*z for z.
answer: -7

Write down the solution for this math problem: Solve 0 = -318*s - 160*s + 897*s - 195*s + 22848 for s.
answer: -102

Write down the solution for this math problem: Solve 4086 + 1395 = 9*n + 81*n - 999 for n.
answer:
72