Q: What is the solution?
Solve -12*a + 4*a - 40 = 0 for a.

A: -5

Q: What is the solution?
Solve -26*y - 237 = 27*y - 873 for y.

A: 12

Q: What is the solution?
Solve -514*a = -518*a + 24 for a.

A:
6