Find the point of intersection of the lines 3=6x-y and 3x-2y=24 ?

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asked Nov 18, 2016 197k views

2 votes

Find the point of intersection of the lines 3=6x-y and 3x-2y=24 ?

Mathematics
high-school

Alec Mev asked

by Alec Mev

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1 Answer

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$\left \{ {3=6x-y\ \ \atop {3x-2y=24}} \right. \\\\ \left \{ {{-6=-12x+2y} \atop {24=3x-2y}} \right. \\+----\\add\ both\ equations\\\\ 18=-9x\ \ \ | divide\ by\ -9\\\\ x=-2\\\ y=6x-3=6*(-2)-3=-12-3=-15\\\\ Point\ of\ intersection:\ (-2,-15)$

Anjan answered Nov 23, 2016

by Anjan

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