Question:
Solve 0 = 98*c - 10*c + 65*c + 3213 for c..

Answer:
-21

Question:
Solve -444 - 42 - 60 = -42*l for l..

Answer:
13

Question:
Solve 2026*v + 83*v - 24805 = -449*v + 161929 for v..

Answer:
73

Question:
Solve 0 = 40*s - 3*s + 222 for s..

Answer:
-6