Q: Solve -v - 9 = -4*v for v.

A: 3

Q: Solve -60 = 16*j - 108 for j.

A: 3

Q: Solve 19854*c - 19761*c - 8277 = 0 for c.

A: 89

Q: Solve 15*a - 16 = 7*a for a.

A:
2