ibety
ibety
24-08-2017
English
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Two -thirds a number plus 4 is 7
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BrainIess
BrainIess
24-08-2017
[tex] Let\ x\ be\ the\ unknown\ number, \\\\ {\frac{2}{3} }x+4=7 \\\\ {\frac{2}{3} }x=3 \\\\ x= {\frac{3}{{\frac{2}{3} }} } \\\\ x=4.5 [/tex]
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