Problem: Math Problem
Solve 2687 = -37*u + 2058 for u.

A: -17

Problem: Math Problem
Solve 1429*u + 513*u + 58661 = -32974 + 4245 for u.

A: -45

Problem: Math Problem
Solve -19514*r + 19841*r = -1962 for r.

A:
-6