Q: What is the solution?
Solve 0 = 202*t + 6680 - 418 for t.

A: -31

Q: What is the solution?
Solve 0 = 20*r + 60 - 0 for r.

A: -3

Q: What is the solution?
Solve 196*u + 136*u + 1365 = 241*u for u.

A:
-15