Mulţimea Q+
(3a+2b)/(a+7b)=12/23
Aflaţi a/b

Răspunsul a fost dat de: USER4924
27 Agustus 2025 matematica 5 minute
4.5
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Întrebare

Clasă: Education Materie: matematica
Mulţimea Q+
(3a+2b)/(a+7b)=12/23
Aflaţi a/b
Întrebare a fost pusă de:
57 Vezi 57 Răspunsuri

Răspuns (57)

Cel mai bun răspuns
(146)
12(a+7b)= 23(3a+2b)

12a + 84b= 69a + 46b

12a-69 =  46b - 84b

-57a = -38b

57a=38b

a/b= 38/57
Răspunsul a fost dat în data 27 Agustus 2025
(85)
(3a+2b)X23=(a+7b)X12 =>69a+46b=12a+84b

=>57a=38b=>a\b=38\57
Răspunsul a fost dat în data 27 Agustus 2025

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