Q: Solve -15339*v + 15325*v = 42 for v.

A: -3

Q: Solve 798 = 15*r + 50*r + 2423 for r.

A: -25

Q: Solve -10988 = 9*c - 10880 for c.

A: -12

Q: Solve -49*h = -11*h + 228 for h.

A:
-6