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solve

 

 

-7+8y=1

4x-8y=20   what is y?

 Apr 6, 2019
edited by Guest  Apr 6, 2019
 #1
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+1

i'm assuming you mean -7x

add the equations

-3x = 21

x = -7

 

plug in x

-28-8y=20

8y = -48

y = -6

 Apr 6, 2019
 #2
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thank you

 Apr 6, 2019

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