Solve -10*z + 8*z + 54 - 20 = 0 for z.
Solve this plz.

A: 17

Solve -17 = -7*l - 31 for l.
Solve this plz.

A: -2

Solve -84*t - 3828 = 76*t - 102*t for t.
Solve this plz.

A:
-66