Q: Solve:
Solve 109*l + 159 + 236 = 68 for l.

A: -3

Q: Solve:
Solve -2170*y - 492 = -2129*y for y.

A: -12

Q: Solve:
Solve 979 + 1491 = -1866*c + 1771*c for c.

A:
-26