Q: Solve 409392*a - 409403*a + 110 = 0 for a.

A: 10

Q: Solve -2*d = d + 9*d for d.

A: 0

Q: Solve -108 = 14*s - 49*s + 32 for s.

A: 4

Q: Solve 2*h + 9 = -7*h for h.

A:
-1