granny12301024 granny12301024
  • 01-11-2018
  • Mathematics
contestada

which ordered pairs in the form (x,y) are solutions to 7x-5y=28

Respuesta :

joceyscarano joceyscarano
  • 01-11-2018

y=-5/28,x=4

do the process of cancellation, if you wanna find the x pair just substitute y for 0 then answer. repeat for y.

ex:

7x-5(0)=28

7x=28

divide 28 by 7

x=4    

___________

7(0)-5y=28

-5y=28

divide 28 by -5

y=-28/5                            

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