What is the solution to the system of equations? 5x+4y=8 x-2y=10

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asked Feb 28, 2016 81.5k views

1 vote

What is the solution to the system of equations? 5x+4y=8 x-2y=10

Mathematics
middle-school

WarSame asked

by WarSame

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$\left \{ {{5x+4y=8} \atop x-2y=10\ } \right. \\\\ \left \{ {{5x+4y=8} \atop {2x-4y=20}} \right. \\+-----\\\\7x=28\ \ \ \ |:7\\x=4\\\\4-2y=10\\-2y=10-4\\-2y=6\ \ \ \ \ |:-2\\y=-3\\\\ \left \{ {{y=3} \atop {x=4}} \right.$

Sake answered Mar 3, 2016

by Sake

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