Q: What is the solution?
Solve -3159 = 7239322*r - 7239205*r for r.

A: -27

Q: What is the solution?
Solve 0*a - 4*a = -8 for a.

A: 2

Q: What is the solution?
Solve -51019*p + 51045*p + 208 = 0 for p.

A:
-8