glenjacob01 glenjacob01
  • 16-07-2017
  • Mathematics
contestada

fill in the other coordinate for the line 7x - 5y =21:(4 , ?)

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QueenJahaida
QueenJahaida QueenJahaida
  • 16-07-2017
7x - 5y =21
-7           -7
5y  =     14
----        -----
5            5
y=   2.8
(4,2.8)
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