Q: Solve:
Solve 66*i + 547 + 247 = 68 for i.

A: -11

Q: Solve:
Solve -6*d + 15*d = -3*d + 24 for d.

A: 2

Q: Solve:
Solve -28*k - 1982 = 138*k - 488 for k.

A:
-9