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Va rog mult❤️❤️❤️❤️​

Va Rog Mult class=

Răspuns :

Răspuns:

2a+b=5 I·2

2b+3c=7 I·3

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4a+2b=10

6b+9c=21

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4a+8b+9c=10+21

4a+8b+9c=31