Solve -286*a + 8138 - 15281 - 17453 = 0 for a.
Solve this plz.

A: -86

Solve -261*d + 3034 = -133*d + 90 for d.
Solve this plz.

A: 23

Solve 41*c - 46 = 126*c + 294 for c.
Solve this plz.

A:
-4