Solve -277*q = -232*q + 225 for q.
Solve this plz.

A: -5

Solve 2880 + 7473 = -493*z for z.
Solve this plz.

A: -21

Solve -1387*i = 743*i + 1115*i + 223905 for i.
Solve this plz.

A:
-69