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5a-15+9a=3a+29

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689
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5a-15+9a=3a+29

 Aug 21, 2016

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 #1
avatar+12530 
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5a-15+9a=3a+29

    14a-15=3a+29   |-3a

    11a-15=29         |+15

         11a=44         |:11

             a=4

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 Aug 21, 2016

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