Solve -258*l + 306 - 950 - 461 = 701 for l.
Solve this plz.

A: -7

Solve -17*m + 18*m = 7 for m.
Solve this plz.

A: 7

Solve -376766*t + 376837*t - 4473 = 0 for t.
Solve this plz.

A:
63