Q: What is the solution?
Solve 185*d - 470*d + 309 + 2541 = 0 for d.

A: 10

Q: What is the solution?
Solve 2*a + 23 - 33 = 0 for a.

A: 5

Q: What is the solution?
Solve -623354*a - 969 = -623405*a for a.

A:
19