Solve i = -0*i - 21 + 26 for i.
Solve this plz.

A: 5

Solve 31*s - 342 = -26*s for s.
Solve this plz.

A: 6

Solve -1219*d - 2980*d = -26*d - 5987 - 6532 for d.
Solve this plz.

A:
3