Q: What is the solution?
Solve -66*a + 70*a - 12 = 0 for a.

A: 3

Q: What is the solution?
Solve -14 = -35*i + 42*i for i.

A: -2

Q: What is the solution?
Solve -585*v + 1917*v + 75924 = 0 for v.

A:
-57