Q: What is the solution?
Solve 561*x - 115*x + 345*x = -12656 for x.

A: -16

Q: What is the solution?
Solve -33929 = 762*k - 24785 for k.

A: -12

Q: What is the solution?
Solve 387*y - 7193 = -238*y - 38443 for y.

A:
-50