Question:
Solve 9579 + 2713 = -439*i for i..

Answer:
-28

Question:
Solve 559*o + 19431 + 2956 + 5004 = 0 for o..

Answer:
-49

Question:
Solve -3*a = 17 - 26 for a..

Answer:
3

Question:
Solve -69 = -10*u + 3*u - 16*u for u..

Answer:
3