Question:
Solve -164*i = 91*i - 344*i + 2403 for i..

Answer:
27

Question:
Solve 80 = -208*t - 960 for t..

Answer:
-5

Question:
Solve -67 = -10*l - 47 for l..

Answer:
2

Question:
Solve -150*u + 0 = -93*u - 1 + 1 for u..

Answer:
0