Question:
Solve -713*i - 514*i + 20314 + 27539 = 0 for i..

Answer:
39

Question:
Solve -2*f = 4*f + 24 for f..

Answer:
-4

Question:
Solve -4*u - 3 = -5*u for u..

Answer:
3

Question:
Solve -1877*w - 221412 = 3412*w + 206997 for w..

Answer:
-81