# Word problem

A stamp collection consists of 3, 8, and 15 cent stamps. The number of 8 cent stamps is one less than triple the number of 3 cent stamps. The number of 15 cent stamps is six less than the number of 8 cent stamps. The total value of all the stamps is $2.47. What is the number of 8 cent stamps in the collection?

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...3x - 1 and number of 15 cent stamps will be (3x - 1) - 6 = 3x - 7.

$2.47 = 247 cents.

Then the ...