Solve 221*z - 689*z + 33900 = -371*z + 1033*z for z.
Solve this plz.

A: 30

Solve 168*t = 165*t - 6 for t.
Solve this plz.

A: -2

Solve -13*x - 11 = -63 for x.
Solve this plz.

A:
4