Solve 0 = 767406*r - 767442*r - 936 for r.
Solve this plz.

A: -26

Solve -30*t - 34 = -13*t for t.
Solve this plz.

A: -2

Solve 223262 = 12023*t - 394806 + 149171 for t.
Solve this plz.

A:
39