SOLUTION: It cost Justin $100 to have a cable TV installed in his house. Each month he pays an access fee plus tax of 7% of his monthly bill. After 6 months, Justin had paid a total of $350.

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Question 1047522: It cost Justin $100 to have a cable TV installed in his house. Each month he pays an access fee plus tax of 7% of his monthly bill. After 6 months, Justin had paid a total of $350.38 for his access fee, taxes, and his initial installation. What is Justin's monthly access fee not including taxes?
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
350.38-100=250.38
Let n be the access fee. Then total charges are n plus .07n. So:
n+.07n=250.38
1.07n=250.38
n=234 total access fees.
234/6=$39 access fee; $2.73 access fee tax. ☺☺☺☺