Q: Solve:
Solve -5*a + 15*a = -10 for a.

A: -1

Q: Solve:
Solve -24*t - 955 + 307 = 0 for t.

A: -27

Q: Solve:
Solve 216 - 23984 = 216*y + 1079*y + 25442 for y.

A:
-38