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VA ROG FRUMOS DAU COROANA ​

VA ROG FRUMOS DAU COROANA class=

Răspuns :

Răspuns:

Explicație pas cu pas:

2/5+[2/5+(2/5-x)]-1/5=3/5

2/5+[2/5+(2/5-x)]=4/5

[2/5+(2/5-x)=4/5-2/5

[2/5+(2/5-x)]=2/5

(2/5-x)=0

x=2/5