Solve 537*m + 9655 + 2573 = 26*m - 547 for m.
Solve this plz.

A: -25

Solve -1400*a = -726*a - 706*a - 352 for a.
Solve this plz.

A: -11

Solve 76*w + 2665 = 4261 for w.
Solve this plz.

A:
21