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Hei! x:5+6(5/2+6/3+7/4)=120+1/2
x=????


Răspuns :

x:5+6(5/2+6/3+7/4)=120+1/2

x:5+6(30/12+24/12+21/12)=120+1/2

x:5+6 * 75/12=241/2

x:5+75/2=241/2

x:5=166/2

x:5=83
x=415