Write down the solution for this math problem: Solve 0 = -221*z + 215*z - 12 for z.
answer: -2

Write down the solution for this math problem: Solve -63*f = 748334 - 747011 for f.
answer: -21

Write down the solution for this math problem: Solve 0 = 68*g - 46 - 158 for g.
answer: 3

Write down the solution for this math problem: Solve -37*w + 4333 = 32*w + 3988 for w.
answer:
5