Question

{2×+y=10
{×-y=2



{×+2y=11
{2×+3y=17









​

Answer 1

Resposta:{2×+y= 10

{×-y=2

--------------

3x=12

x=12/3

x=4

x-y=2

4-y=2

-y=2-4

-y=-2

y=2

{x+2y=11 .(-2)

{2x+3y=17

{-2x-4y=-22

{2x+3y=17

-----------------

-y=-5

y=5

x+2y=11

x+2.5=11

x+10=11

x=11-10

x=1

Leia mais em Brainly.com.br - https://brainly.com.br/tarefa/24617354#readmore