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Urgent vã rog
2a+3b+4c=13


Răspuns :

[tex]2a+3b+4c=13 \\ \\ 4~+~9~+~0=13 \Longrightarrow \boxed{a=2;~b=3;~c=0} \\ 2~+~3~+~8=13 \Longrightarrow \boxed{a=1;~b=1;~c=2} \\ 0~+~9~+~4=13 \Longrightarrow \boxed{a=0;~b=3;~c=1} \\ [/tex]