Question:
Solve 96 = 4*c + 116 for c..

Answer:
-5

Question:
Solve 3300 = -4*v - 133*v + 27*v for v..

Answer:
-30

Question:
Solve -47*c - 470 = -0*c for c..

Answer:
-10

Question:
Solve 18*u - 8*u + 50 = 0 for u..

Answer:
-5