Q: What is the solution?
Solve 0 = 308*z - 884*z + 576 for z.

A: 1

Q: What is the solution?
Solve -91*a - 560 = 49*a for a.

A: -4

Q: What is the solution?
Solve 39*t = 13*t + 78 for t.

A:
3