Q: Solve:
Solve 57*y - 32*y + 70*y + 12246 = -62*y for y.

A: -78

Q: Solve:
Solve 850 = 22*u + 1070 for u.

A: -10

Q: Solve:
Solve -994 = 16*i - 7*i + 133*i for i.

A:
-7