Solve 0*a - 70 = 10*a for a.
Solve this plz.

A: -7

Solve 103 - 287 = -23*a + 138 for a.
Solve this plz.

A: 14

Solve -7518 = 281916*l - 281737*l for l.
Solve this plz.

A:
-42