Solve -22050 = 206*i - 130*i + 218*i for i.
Solve this plz.

A: -75

Solve 1860*z + 2148*z - 39668 = 140692 for z.
Solve this plz.

A: 45

Solve -70*n - 60*n + 442 = -91*n + 52 for n.
Solve this plz.

A:
10