Q: What is the solution?
Solve 40 = 14*n - 2 for n.

A: 3

Q: What is the solution?
Solve -28 = -v - 9*v + 72 for v.

A: 10

Q: What is the solution?
Solve 19*i + 109 = 4*i + 49 for i.

A:
-4