Sunday, May 26, 2013

what is the value of x in 6/x = 7/(x+3)



%0D%0A6%2Fx+=+7%2F%28x%2B3%29%0D%0A 
then... 



We cross multiply because this is a proportion:
%28x%2B3%296=7x 




%0D%0A6x%2B18=7x%0D%0A 



x=18
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