Furneaiulia21ask
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Daca 5a+3b+4c=9,012 şi 4a+2b+3c=8,023,atunci calculati a+b+c​ am nevoie urgent

Răspuns :

Atlarsergiu18791ask

5a+3b+4c=9012

4a+2b+3c=8023

a+b+c=???

_______________

4a=8023-2b-3c

2b=8023-3c-4a

2b=8023-3c-(8023-2b-3c)

4b=0

b=0

4a+3c=8023

8023-2b-3c+3c=8023

c=2b

c=0

4a=8023

a=2005,75

a+b+c=2005,75

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