Write down the solution for this math problem: Solve 908*p - 431 = 38*p - 6521 for p.
answer: -7

Write down the solution for this math problem: Solve -3 = -3*r - 6 for r.
answer: -1

Write down the solution for this math problem: Solve 1924*p - 23177 = 105731 for p.
answer: 67

Write down the solution for this math problem: Solve -7 - 3 = 10*h for h.
answer:
-1