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1/3 ori x=10
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Răspuns :

Lorena2000
1/3·x=10⇒
x=10·3⇒
x=30
MG1
[tex] \frac{1}{3} [/tex]*x=10 <=>  x=10:[tex] \frac{1}{3} [/tex] <=> x=10*[tex] \frac{3}{1} [/tex] => x=30

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