Q: Solve 0 = -265*v + 491*v - 678 for v.

A: 3

Q: Solve 245*s - 257*s = 108 for s.

A: -9

Q: Solve 28*q + 4 = 26*q for q.

A: -2

Q: Solve -102*o - 97 = 282 + 335 for o.

A:
-7