Solve -10353*u + 4701572 - 779237 = -49188*u for u.
Solve this plz.

A: -101

Solve 62*k - 36*k = 46*k + 240 for k.
Solve this plz.

A: -12

Solve -422*c + 219*c + 644 = -226*c for c.
Solve this plz.

A:
-28