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September 16, 2014

September 16, 2014

Posted by **Allen** on Thursday, October 4, 2012 at 9:08pm.

- Math 102 -
**Reiny**, Thursday, October 4, 2012 at 10:00pmSo you want

(10+x)/(23-x) = 6/5

cross-multiply

5(10+x) = 6(23-x)

50 + 5x = 138 - 6x

11x = 88

x = 8

the number is 8

check"

(10+8)/(23-8)

= 18/15

= 6/5

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