suma a 2 nr. edte 27, iar diferenta lor este 7. Sa se afle cele 2 numere. metoda figurativa

Răspunsul a fost dat de: USER5978
1 September 2025 matematica 5 minute
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Clasă: Education Materie: matematica
suma a 2 nr. edte 27, iar diferenta lor este 7. Sa se afle cele 2 numere. metoda figurativa
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Cel mai bun răspuns
(103)
a+b=27
a-b=7
Rezulta ca a=7+b
7+b+b=27 rezulta b= 10 rezulta a= 7+10 adica a=17 si b= 10
Răspunsul a fost dat în data 1 September 2025
(171)
x+y= 27
x-y= 7 
x |-----| + 7
y |-----|                      suma lor fiind 27
  
27-7=20
20:2=10
x=10+7
x=17
y=10

Răspunsul a fost dat în data 1 September 2025

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