Stiind ca a-b= 7,iar a+b+2c =53, cat este b+ c=?

Răspunsul a fost dat de: USER9967
29 Agustus 2025 matematica 5 minute
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Clasă: Education Materie: matematica
Stiind ca a-b= 7,iar a+b+2c =53, cat este b+ c=?
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a+b+2c=53
 a-b=7
 a+b+2c-a+b=53-7
2b+2c=46
2(b+c)=46
b+c=46:2
b+c=23
Răspunsul a fost dat în data 29 Agustus 2025

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