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x+y=8 x-y=2

 Oct 19, 2016
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x+y=8

x-y= 2             just add the two equations   and we get that

 

2x  = 10         divide both sidesd by 2

 

x = 5

 

Put the value back into either equation to find y

 

5 + y  = 8          and it's obvious that y = 3

 

So.....the soution is  (x, y)  = ( 5, 3)

 

 

 

cool cool cool

 Oct 19, 2016

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