Solve 84*d + 78*d - 8579 = -20*d + 521 for d.
Solve this plz.

A: 50

Solve 21*j - 1579 = -1243 for j.
Solve this plz.

A: 16

Solve -31835*g + 32877*g = 19271 + 55753 for g.
Solve this plz.

A:
72