goldendina13 goldendina13

18-11-2020
Mathematics

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elimination method - -4x = 4y
4x - 8y = 12

elimination method 4x 4y 4x 8y 12 class=

Respuesta :

camillecosato camillecosato

18-11-2020

Answer: (4,-4)

y=-4, x=4

Step-by-step explanation:

-4x=4y

4x-8y=12

-8y=-4x+12 Now I can substitute -4x for 4y

-8y=4y+12

-2y=y+12

-3y=12

y=-4

-4x=4y

-4x=4(-4)

x=4

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