riannalynn17 riannalynn17
  • 17-10-2018
  • Mathematics
contestada

Which ordered pair is a solution of the equation? y=8x+3y=8x+3

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williamss21
williamss21 williamss21
  • 17-10-2018

Multiply the first equation by 4 (so that both equations will have 8x terms) and then subtract:  

8x-20y = -24

8x +3y = 68

------------

0 -23y = -92  

Now divide both sides by -23:  

y = 4  

Find x by plugging y=4 into either equation:  

8x +3(4) = 68

8x = 68 - 12

8x = 56

x = 7  

So the answer is ordered pair is (7,4)

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Iamthelionqueen
Iamthelionqueen Iamthelionqueen
  • 17-10-2018

y=8x+3y=8x+3

the answer is (7,4) i think

_queenshadygucci_

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