wolfeac
wolfeac
25-10-2020
Mathematics
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|2r + 5|= 3r
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hadiafahd2014
hadiafahd2014
25-10-2020
|2r+5|=3r
+(2r+5)=3r -(2r+5)=3r
+5=3r-2r. -2r-5=3r
r= 5 -5=3r+2r
-5=5r
r=-1
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