Q: What is the solution?
Solve 3510 = -164*a + 3902 + 4725 + 5707 for a.

A: 66

Q: What is the solution?
Solve -18*r = -3 + 3 for r.

A: 0

Q: What is the solution?
Solve 3*p + 16 = -p for p.

A:
-4