Q: Solve:
Solve 11 = -79*l - 1239 + 172 + 130 for l.

A: -12

Q: Solve:
Solve 68 = 12*o + 217 + 91 for o.

A: -20

Q: Solve:
Solve 28 = -1558*x + 1554*x for x.

A:
-7