Solve -5501*q = -5721*q - 3300 for q.
Solve this plz.

A: -15

Solve 76*t = 3*t + 16*t - 1083 for t.
Solve this plz.

A: -19

Solve 421*y - 615905 = -628535 for y.
Solve this plz.

A:
-30