question: Teacher asked me this: Solve 154557*w - 240 = 154565*w for w.
++++++++++
answer: -30

question: Teacher asked me this: Solve 15*f = -5439 + 5634 for f.
++++++++++
answer: 13

question: Teacher asked me this: Solve 20 - 4 = -4*c for c.
++++++++++
answer: -4

question: Teacher asked me this: Solve -17*v - 759 = -3*v + 19*v for v.
++++++++++
answer:
-23