Q: What is the solution?
Solve 0 = -126*d + 119*d - 21 for d.

A: -3

Q: What is the solution?
Solve 1817*z - 141*z - 59357 = -15781 for z.

A: 26

Q: What is the solution?
Solve -1079*c + 2156*c = 1046*c - 1426 for c.

A:
-46