Q: Solve:
Solve 2689*m - 1477*m = -65448 for m.

A: -54

Q: Solve:
Solve 14*d + 1210 = -20*d - 21*d for d.

A: -22

Q: Solve:
Solve 0 = -208*d - 752 + 17600 for d.

A:
81