Solve -74100*v + 374 = -74083*v for v.
Solve this plz.

A: 22

Solve -117 = -213*t + 200*t for t.
Solve this plz.

A: 9

Solve 11942 - 8326 + 30319 + 2489 = 628*r for r.
Solve this plz.

A:
58