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Solve this system by elimination. SHOW ALL OF YOUR WORK.
5x-4y=3
-10x+7y=-4​

 Mar 7, 2021
 #1
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  Multiply first equation by 2 to get

10x-8y=6

-10x+7y=-4​        now add the two equations   (this eliminates 'x')

 

-y = 2

then y = 2     use this value in one of the equations to calculate the value of 'x'

 Mar 7, 2021

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