Daca a+b= 21 si b+c= 30 , sa se calculeze:
a+2*b+c
c-a

Răspunsul a fost dat de: USER2557
29 Agustus 2025 matematica 5 minute
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Întrebare

Clasă: Education Materie: matematica
Daca a+b= 21 si b+c= 30 , sa se calculeze:
a+2*b+c
c-a
Întrebare a fost pusă de:
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Răspuns (66)

Cel mai bun răspuns
(106)
a=30-21=9
b=21-9=12
c=30-12=18

a+2×b+c=30+21=51
9+24+18=51

c-a=18-9=9
Răspunsul a fost dat în data 29 Agustus 2025
(34)
a+2b+c=30+21=52...................
Răspunsul a fost dat în data 29 Agustus 2025

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