Q: Solve:
Solve 7885*i - 7890*i = 20 for i.

A: -4

Q: Solve:
Solve -168702 = -67*a - 167094 for a.

A: 24

Q: Solve:
Solve 216137 - 26199 = 3980*m - 16675 - 28207 for m.

A:
59