Question:
Solve 0*f + 33 = -2*f + 15 for f..

Answer:
-9

Question:
Solve -18 = 7*p + 10 + 7 for p..

Answer:
-5

Question:
Solve -13230*v + 385 = -13195*v for v..

Answer:
11

Question:
Solve 0 = 2383802*v - 2383661*v - 9926 - 2341 for v..

Answer:
87