question: Teacher asked me this: Solve 75 = 43*b + 247 for b.
++++++++++
answer: -4

question: Teacher asked me this: Solve 6*z + 1 = -23 for z.
++++++++++
answer: -4

question: Teacher asked me this: Solve -6*x = 34*x + 19*x - 767 for x.
++++++++++
answer: 13

question: Teacher asked me this: Solve 0 = -23*v - 455 - 51 for v.
++++++++++
answer:
-22