Q: What is the solution?
Solve -1671*m = -418*m + 1253 for m.

A: -1

Q: What is the solution?
Solve -212*p + 14 = -219*p for p.

A: -2

Q: What is the solution?
Solve -226*r + 2225 = 71*r - 1339 for r.

A:
12