Solve 7774 = -184*t - 73 - 19385 for t.
Solve this plz.

A: -148

Solve -23 = 13*u + 46 + 48 for u.
Solve this plz.

A: -9

Solve 767*a + 12915 = -1522*a + 444*a for a.
Solve this plz.

A:
-7