Find the solution of this system of equations -2x-4y=42 2x-8y=18

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asked Dec 19, 2019 59.0k views

1 vote

Find the solution of this system of equations -2x-4y=42 2x-8y=18

Mathematics
middle-school

Ben Koehler asked

by Ben Koehler

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2 Answers

5 votes

Answer:

(-11, -5)

Explanation:

It's right

Roydukkey answered Dec 21, 2019

by Roydukkey

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2 votes

Answer:

(-11, -5)

Explanation:

Use elimination

-2x-4y = 42

2x-8y = 18

-12y = 60

y = -5

Plug it back in

2x-8(-5) = 18

2x+40 = 18

2x = -22

x = -11

(-11, -5)

VSadov answered Dec 23, 2019

by VSadov

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