Solve 0 = 2*t + 2*t - 8 for t.
Solve this plz.

A: 2

Solve -19*f + 115*f + 259*f = -269 - 9671 for f.
Solve this plz.

A: -28

Solve 0 = 11*t + 40*t + 918 for t.
Solve this plz.

A:
-18