Solve -110*a + 21*a + 20801 = 252*a for a.
Solve this plz.

A: 61

Solve 12*o - 21 = 111 - 12 for o.
Solve this plz.

A: 10

Solve 37*q = 32*q - 10 for q.
Solve this plz.

A:
-2