Write down the solution for this math problem: Solve 13*d - 15 = 18*d for d.
answer: -3

Write down the solution for this math problem: Solve -4*v - 6 = -2 for v.
answer: -1

Write down the solution for this math problem: Solve -53 = -10*p - 23 for p.
answer: 3

Write down the solution for this math problem: Solve -7*z + 5*z - 221 = 11*z for z.
answer:
-17