Solve -3*k - 69 = -51 for k.
Solve this plz.

A: -6

Solve -10*q - 148 + 56 = 138 for q.
Solve this plz.

A: -23

Solve 4002*r + 3800 - 108465 - 167471 = 0 for r.
Solve this plz.

A:
68