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27-01-2015
Mathematics

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how do I solve 8c=5c+21 ?

Respuesta :

27-01-2015

[tex]8c=5c+21 \ \ \ |\hbox{subtract 5c from both sides} \\ 3c=21 \ \ \ |\hbox{divide both sides by 3} \\ c=7[/tex]

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27-01-2015

first subtract 5c from 8c to get "3c=21" and divide each side by 3 so the answer is c=7

Answer Link

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