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01-12-2020
Mathematics

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solve by using elimination 2x-6y=18 -2x + 4y = -6 ( , )

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01-12-2020

Answer:

x = -9,

y = -6

Step-by-step explanation:

2x - 6y =18

-2x + 4y = -6

you can add the equations together as is and eliminate x

-2y = 12

y = -6

then plug back in,

2x - 6(-6) = 18

2x + 36 = 18

2x = -18

x= -9

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