Question:
Solve 47343 = 1920*c - 8645 - 12434 - 50618 for c..

Answer:
62

Question:
Solve 70*z - 74*z = -4 for z..

Answer:
1

Question:
Solve -2273 - 1839 = 257*v for v..

Answer:
-16

Question:
Solve 158*d = 160*d for d..

Answer:
0