Q: Solve:
Solve -202403 = -7681*k + 2097*k - 760803 for k.

A: -100

Q: Solve:
Solve -306*i + 313*i = 63 for i.

A: 9

Q: Solve:
Solve -73*r - 15020515 + 15016427 = 0 for r.

A:
-56