Q: Solve:
Solve 0 = 19*c - 12*c + 21 for c.

A: -3

Q: Solve:
Solve 156*x + 16500 = -131*x - 373*x for x.

A: -25

Q: Solve:
Solve 5534*j = -641352 + 110088 for j.

A:
-96