Solve -106*z - 1050 = -294*z + 105*z + 108*z for z.
Solve this plz.

A: -42

Solve -36*a + 20 = -26*a for a.
Solve this plz.

A: 2

Solve 17*v + 178 - 101 - 128 = 0 for v.
Solve this plz.

A:
3