Question

Resolva o Sistema
x+ y= 17
6x =7y+ 24

Answer 1

x+y=17. x(-6)
6x-7y=24

-6x-7y= -102
6x-7y= 24

-6x+6x-7y-7y= -102+24
-14y= -88
y= 88/14 simplificando
y= 44/7

x+y= 17
x+44/7= 17 (MMC)
7x+44=119
7x= 75
x=75/7