Question:
Solve 60 = 11*u - 23*u for u..

Answer:
-5

Question:
Solve -259*c + 8236 + 11807 = 170*c - 36*c for c..

Answer:
51

Question:
Solve 0 - 5 = -r for r..

Answer:
5

Question:
Solve -37*w = 8 - 82 for w..

Answer:
2