Q: Solve:
Solve -95*a + 40*a - 43*a + 136 + 1530 = 0 for a.

A: 17

Q: Solve:
Solve 104 - 531 = 61*f for f.

A: -7

Q: Solve:
Solve 21*y - 16*y = -20 for y.

A:
-4