Solve 519*b - 24*b - 1980 = 0 for b.
Solve this plz.

A: 4

Solve 12317*d + 989 = 24596*d - 12322*d for d.
Solve this plz.

A: -23

Solve 2122*t - 704 = 4160*t - 2082*t for t.
Solve this plz.

A:
16