Q: Solve -25*j - 420 = -85*j for j.

A: 7

Q: Solve -7*p = 29*p - 36 for p.

A: 1

Q: Solve 126*c + 738 = -226 - 170 for c.

A: -9

Q: Solve 130*u = -40 - 90 for u.

A:
-1