Afla nr necunoscut (a+3)÷[19-(6×2+64÷4)÷7]=2

Răspunsul a fost dat de: USER4319
28 Agustus 2025 matematica 5 minute
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Clasă: Education Materie: matematica
Afla nr necunoscut (a+3)÷[19-(6×2+64÷4)÷7]=2
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(a+3)/[19-(12+16)/7]=2
(a+3)/[19-28/7]=2
(a+3)/[19-4]=2
(a+3)/15=2
(a+3)=15*2
(a+3)=30
a=30-3
a=27
Răspunsul a fost dat în data 28 Agustus 2025

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