question: Teacher asked me this: Solve 84 = -4*k + 108 for k.
++++++++++
answer: 6

question: Teacher asked me this: Solve 294*x = 282*x - 48 for x.
++++++++++
answer: -4

question: Teacher asked me this: Solve -19609 - 2908 + 3572 = 625*b + 17930 for b.
++++++++++
answer: -59

question: Teacher asked me this: Solve 6*f = 19 + 5 for f.
++++++++++
answer:
4