Question:
Solve -9*w + 448 = 47*w for w..

Answer:
8

Question:
Solve -9450*f + 9477*f + 322 + 272 = 0 for f..

Answer:
-22

Question:
Solve 25989*l - 26002*l = 78 for l..

Answer:
-6

Question:
Solve 39*r - 15*r = -240 for r..

Answer:
-10