Question

SISTEMA DE EQUAÇÃO
{x+2y=13+7x
{2y=x+2

Answer 1

{x+2y=13+7x
{2y=x+2 (-1)

{x+2y=13+7x
{- 2y= -x-2

x=11+6x
x=11/5 

2y=11/5+2
2y= (11/5) + (2/1)
2y= [(11.1)+(5.2)] / (5.1)
2y=21/6
y= 3,5/2
y=1,75