Solve -2*z - 15 = -7 for z.
Solve this plz.

A: -4

Solve 11*i + 800 = 844 for i.
Solve this plz.

A: 4

Solve 45*k + 75*k + 335 = -98*k + 4477 for k.
Solve this plz.

A:
19