Question:
Solve 0 = 2*u + 4 + 6 for u..

Answer:
-5

Question:
Solve 7 + 18 = -25*v for v..

Answer:
-1

Question:
Solve -702902 - 980373 = 16199*c - 4394*c - 514580 for c..

Answer:
-99

Question:
Solve -85*y + 3262 = -318*y for y..

Answer:
-14