Solve 0 = -269*i + 4450 + 3734 - 2804 for i.
Solve this plz.

A: 20

Solve 192*v = 155*v + 851 for v.
Solve this plz.

A: 23

Solve -15*a = -10*a + 10 for a.
Solve this plz.

A:
-2