Solve 413*k - 40 = 403*k for k.
Solve this plz.

A: 4

Solve -27*b = -9 - 153 for b.
Solve this plz.

A: 6

Solve 33356*d - 7053*d - 544989 = 1878794 + 785183 for d.
Solve this plz.

A:
122