Solve -17*r + 5 = -12*r for r.
Solve this plz.

A: 1

Solve 47*o = -25 - 46 + 24 for o.
Solve this plz.

A: -1

Solve -2229*t + 2395*t + 2925 + 2221 = 0 for t.
Solve this plz.

A:
-31