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09-05-2018
Mathematics

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Help please??????????

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Respuesta :

14-05-2018

[tex](13x-13)+(7x-9)=18x+14\\\\13x-13+7x-9=18x+14\\\\20x-22=18x+14\ \ \ |+22\\\\20x=18x+36\ \ \ \ |-18x\\\\2x=36\ \ \ |:2\\\\x=18\\\\|PR|=18x+14[/tex]

substitute the value of x:

[tex]|PR|=18\cdot18+14=324+14=338[/tex]

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