qweerttu67 qweerttu67

11-09-2016
Mathematics

contestada

Quien me dice la respuesta de esto por favor. 2r-(5-r)=13+2r

Respuesta :

frappei frappei

11-09-2016

>distribute left side first: 2r-(5-r)=13+2r
2r-5+r=13+2r
>combine like terms
2r+r = 3r-2r = r, 13+5=18
>r = 18

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