Q: What is the solution?
Solve 61*x - 80*x = -19 for x.

A: 1

Q: What is the solution?
Solve 216*r + 258*r + 3566 + 4492 = 0 for r.

A: -17

Q: What is the solution?
Solve -140*j = 571*j - 8486 - 15688 for j.

A:
34