Solve 4248 = 1652020*b - 1652256*b for b.
Solve this plz.

A: -18

Solve -170*w + 171*w + 3 = 0 for w.
Solve this plz.

A: -3

Solve 19*a + 34 = 2*a for a.
Solve this plz.

A:
-2