Write down the solution for this math problem: Solve 291*f - 2065 = -4*f for f.
answer: 7

Write down the solution for this math problem: Solve 7613*j = 7657*j - 792 for j.
answer: 18

Write down the solution for this math problem: Solve 30*p = 29*p + 4 for p.
answer: 4

Write down the solution for this math problem: Solve 1318 = 114*p + 437 - 829 for p.
answer:
15