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October 21, 2014

October 21, 2014

Posted by **Nancy** on Sunday, April 7, 2013 at 2:29pm.

- Pre-Algebra -
**Ashley**, Sunday, April 7, 2013 at 3:04pm6,7,8

- Pre-Algebra -
**Reiny**, Sunday, April 7, 2013 at 4:05pmlet the first be x-1

let the second be x

let the third be x+1

direct translation from English to Math

(math is a language)

(x-1)(x+2 - x = 5(x+1) + 1

x^2 - 1- x = 5x + 5 + 1

x^2 - 6x -7 = 0

(x-7)(x+1)

x = 7 or x = -1, but x is to be positive

so the first is 6

the second is 7

the third is 8

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