Question:
Solve -94*x + 393407 = 393501 for x..

Answer:
-1

Question:
Solve 4*u - 17 = 3 for u..

Answer:
5

Question:
Solve 300*n - 155*n + 934 = 8329 for n..

Answer:
51

Question:
Solve 77 = 165*r - 88*r for r..

Answer:
1