Ce numar rational care impartit la 7,5 da ca rezultat suma nemerelor 12,4 si 32,6?

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Grade: Education Subject: matematica
Ce numar rational care impartit la 7,5 da ca rezultat suma nemerelor 12,4 si 32,6?
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fie x numarul rational 
x:7,5=12,4+32,6
x:7,5=45
x=45ori7,5
x=337,5
x=3375/10