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x+3 totul supra 2 +1,3x=2*(3-2,5 )=
DAU COROANA 


Răspuns :

x+3/2+1,3x=2(3-2,5)=
=x+3/2+13/10x =2*0,5=
=x+3/20+13x/10=1
=(x+3)*10/20+13x=1
= 10x+30/20+13x=1
= 10x+30=20+13x
unde 10x-13x=20-30
-3x=10 deci x=10/3 sau aproximativ 3,(3)