Solve 21*a - 481276 + 481708 = 5*a for a.
Solve this plz.

A: -27

Solve -76*g = -2702 - 2382 + 2120 for g.
Solve this plz.

A: 39

Solve 1307 + 688 = -63*x - 42*x for x.
Solve this plz.

A:
-19