Q: Solve -13 + 22 = 3*p for p.

A: 3

Q: Solve 0 = 525*c - 359*c - 3320 for c.

A: 20

Q: Solve -53*x = -48*x + 10 for x.

A: -2

Q: Solve 171*b = 135*b - 72 + 540 for b.

A:
13