dannie122810 dannie122810

27-01-2015
Mathematics

contestada

Solve for k 7(9+k)=84

Respuesta :

27-01-2015

[tex]7(9+k)=84 \ \ \ |\div 7 \\ 9+k=12 \ \ \ |-9 \\ k=3[/tex]

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konrad509 konrad509

27-01-2015

[tex]7(9+k)=84\\ 63+7k=84\\ 7k=21\\ k=3[/tex]

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