Solve 170*t - 782 - 578 = 0 for t.
Solve this plz.

A: 8

Solve 0 = -6*k + 2*k - 4 for k.
Solve this plz.

A: -1

Solve 13*v - 717 = -925 for v.
Solve this plz.

A:
-16