26-01-2021
Mathematics

contestada

x + y = 2
2x+ 7y = 9

Respuesta :

cheryllaw0644 cheryllaw0644

26-01-2021

Answer:

x=1 y=1

Step-by-step explanation:

(x + y = 2)×2

2x+ 7y = 9

2x + 2y = 4

2x+ 7y = 9

-5y =-5

y= 1

2x+7(1)=9

2x=2

x=1

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