walterperez walterperez

06-04-2020
Mathematics

contestada

5x - 7y=28
-*+ 7y=0
A) (7,1) B) (-6,5)
c) (7,5) D) (7,-1)

Respuesta :

angel018 angel018

06-04-2020

The answer is A (7,1)

Just substitute the (x,y) and plug it in to the equation

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