question: Teacher asked me this: Solve 16013 - 8006 - 8103 = 48*f for f.
++++++++++
answer: -2

question: Teacher asked me this: Solve -12*i = -8*i - 16 for i.
++++++++++
answer: 4

question: Teacher asked me this: Solve 0*x = 4*x + 12 for x.
++++++++++
answer: -3

question: Teacher asked me this: Solve -6635*b = -13252*b + 6640*b - 414 for b.
++++++++++
answer:
18