Write down the solution for this math problem: Solve 3 = -4*z - 5 for z.
answer: -2

Write down the solution for this math problem: Solve -20*v + 117 - 114 = -217 for v.
answer: 11

Write down the solution for this math problem: Solve -62 = 6*f - 86 for f.
answer: 4

Write down the solution for this math problem: Solve 96 = 10*r + 6*r for r.
answer:
6