Question

помогитее, даю 20 баллов, координация​

Answer 1

$left{begin{array}{l}5y-x=6\3x-7y=6end{array}right; ; left{begin{array}{l}x=5y-6\5y-x=3x-7yend{array}right; ; left{begin{array}{l}x=5y-6\12y=4xend{array}right\\\left{begin{array}{l}3y=5y-6\x=3yend{array}right; ; left{begin{array}{l}-2y=-6\x=3yend{array}right; ; left{begin{array}{l}y=3\x=9end{array}right\\\Otvet:; ; (9;3); .$