Solve -48*b - 767 = -863 for b.
Solve this plz.

A: 2

Solve 342*q - 44*q - 830 - 1663 = -109 for q.
Solve this plz.

A: 8

Solve -50*a + 51*a - 4 = 0 for a.
Solve this plz.

A:
4