question: Teacher asked me this: Solve -8*b + 6787 - 6715 = 0 for b.
++++++++++
answer: 9

question: Teacher asked me this: Solve -209 = 49*a - 62 for a.
++++++++++
answer: -3

question: Teacher asked me this: Solve -10*l + 12 = 22 for l.
++++++++++
answer: -1

question: Teacher asked me this: Solve 123 - 33 = -15*b for b.
++++++++++
answer:
-6