Q: What is the solution?
Solve -16*a - 22*a + 30 + 540 = 0 for a.

A: 15

Q: What is the solution?
Solve -1808*z = -2505*z + 6273 for z.

A: 9

Q: What is the solution?
Solve 1477*t + 45 = -1475*t + 2955*t for t.

A:
15