Q: What is the solution?
Solve 4234 - 2167 + 13269 = -639*y for y.

A: -24

Q: What is the solution?
Solve 20*r - 705836 = -706296 for r.

A: -23

Q: What is the solution?
Solve -19*p + 13 = -26*p + 6 for p.

A:
-1