Q: What is the solution?
Solve 323*f = 426*f + 1133 for f.

A: -11

Q: What is the solution?
Solve 2*r + 13 = 5 for r.

A: -4

Q: What is the solution?
Solve -1942*q + 2386*q + 30774 = 1113*q for q.

A:
46