SOLUTION: B is between A and C. AB=2x-4 BC=7x+5 AC=82 What is the value of x? Show your work for credit

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Question 358572: B is between A and C.
AB=2x-4
BC=7x+5
AC=82
What is the value of x? Show your work for credit
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
AB=2x-4
BC=7x+5
AC=82
******************
2X-4+7X+5=82
9X=82+4-5
9X=81
X=81/9
X=9 ANSWER.
PROOF:
2*9-4+7*9+5=82
18-4+63+5=82
86-4=82
82=82