Respuesta :

HoshnandEngineer

Answer:

x = 22/7

y = -3/7

Step-by-step explanation:

X = 2y +4

3(2y +4) +y = 9

6y + y = 9 - 12

7y = -3

y =-3/7

By using the first equation we will find the value of X:

x - 2y= 4 where y = -3/7

x - 2(-3/7) = 4

x + 6/7 = 4

x = 4 - 6/7

x = 22/7

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