Q: Solve:
Solve 0 = -109*l + 198*l - 890*l - 3204 for l.

A: -4

Q: Solve:
Solve -160 = 5*w + 5*w for w.

A: -16

Q: Solve:
Solve -110 + 89 = 7*o for o.

A:
-3