Write down the solution for this math problem: Solve -13 = 3*z - 4 for z.
answer: -3

Write down the solution for this math problem: Solve -495*v + 70 = -509*v for v.
answer: -5

Write down the solution for this math problem: Solve 0 = -x + 5 for x.
answer: 5

Write down the solution for this math problem: Solve 62*d + 32 = 58*d for d.
answer:
-8