Solve 1637142*a = 1637102*a + 1280 for a.
Solve this plz.

A: 32

Solve 504*v + 4693 = 851*v - 15086 for v.
Solve this plz.

A: 57

Solve -39*d - 452 + 62 = 0 for d.
Solve this plz.

A:
-10