ciarra31 ciarra31

29-01-2019
Mathematics

contestada

solve by substitution y=4x-9 y=x-3

Respuesta :

jelyakin jelyakin

29-01-2019

Answer:

Step-by-step explanation:

y=4x-9

x=y+3

y=4(y+3)-9

y=4y+12-9

-3Y=3

-Y=1

Y=-1

-1=X-3

2=X

(2,-1)

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