Bună! ⚡
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Notăm cele două numere cu x și y.
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[tex]\left \{ {{3x+7y=72/*(-4)} \atop {4x+6y=64/*3}} \right. => \\=>\left \{ {{-12x-28y=-288} \atop {12x+18y=192}} \right.[/tex]
[tex]=======(+)[/tex]
[tex]/-10y=-96 => y= \frac{96}{10} ^{(2} => y=\frac{48}{5}[/tex]
[tex]3x+7y=72 <=> 3x+7*\frac{48}{5} =72 /*5 <=>\\\\<=> 15x+336=360 <=> \\\\<=> 15x=24 => x=\frac{24}{15} ^{(3} => x=\frac{8}{5}[/tex]
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[tex](x;y)=(\frac{8}{5} ;\frac{48}{5} )[/tex]
