Problem: Math Problem
Solve 26657 - 19740 - 64163 = -1218*u for u.

A: 47

Problem: Math Problem
Solve 977*f - 68511 + 18662 - 35575 = -1271*f for f.

A: 38

Problem: Math Problem
Solve 7*x + 0*x = 0 for x.

A:
0