Q: Solve:
Solve -970 + 120 = -170*i for i.

A: 5

Q: Solve:
Solve -389*m + 135*m - 409 = 262*m - 28789 for m.

A: 55

Q: Solve:
Solve 9*a = -3*a + 17*a - 10 for a.

A:
2