Q: Solve -74*s + 55*s - 125*s = -1440 for s.

A: 10

Q: Solve 3*x - 6*x - 6 = 0 for x.

A: -2

Q: Solve -20*a - 91 = -62 - 89 for a.

A: 3

Q: Solve -1209*j = -1175*j + 340 for j.

A:
-10