Q: Solve:
Solve q + 68 = 74 for q.

A: 6

Q: Solve:
Solve 65*a = -99060235 + 99055945 for a.

A: -66

Q: Solve:
Solve 5403 = 156*l + 1919*l + 857*l + 31791 for l.

A:
-9