Question

me ajudem
preciso do cálculo

{x=y-5
{y=2x+8

Answer 1

X= Y-5

Y=2X + 8

X=(2X +8) - 5

X- 2X= 8-5

-X=3

X= - 3

Y= 2X + 8

Y= 2 . ( - 3) + 8

Y= -6 + 8

Y= 2

X= - 3 E Y= 2