aplumlee2005
aplumlee2005 aplumlee2005
  • 02-02-2021
  • Mathematics
contestada

Solve each equations by substitution. y=2x
25x-y=9

Respuesta :

Аноним Аноним
  • 02-02-2021

Answer:

x=9/23 and y=18/23

Step-by-step explanation:

Substitute 2 x for y in 25x−y=9

25x−y=9

25x−2x=9

23x=9

23x/23=9/23

x=9/23

substitute 9/23 for x in y=2x

y=2x

y=2(9/23)

y=18/23

x= 9/23 and y=18/23

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