Question: What is the solution?

Solve -13*q + 3*q = -10 for q.

Answer: 1

Question: What is the solution?

Solve -405*p = 286*p + 509*p + 75600 for p.

Answer: -63

Question: What is the solution?

Solve 0 = -564*y + 874 + 26762 for y.

Answer: 49

Question: What is the solution?

Solve 86*c + 20 = 90*c for c.

Answer:
5