12Angel5 12Angel5

14-05-2016
Mathematics

contestada

find both answers
x+y=10

y=x-4

SHOW WORK PLEASE THIS IS FOR SOME BIG POINTS.....

Respuesta :

14-05-2016

let x+y=10 be equation (1)
and y=x-4 be equation (2)
from (2)
y=x-4...(3)
sub (3) into (1)
x+(x-4)=10
x+x-4=10
2x=12
x=6
sub (x) into (3)
y=6-4
y=2

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