Q: Solve:
Solve 27*a - 57*a = -8*a - 638 for a.

A: 29

Q: Solve:
Solve 355*j - 21604 = 2318*j - 59356 - 74139 for j.

A: 57

Q: Solve:
Solve 83 = 140*s - 1457 for s.

A:
11