Question

gente me ajuda
×+y=7
2×+3y=17;)

Answer 1

gente me ajuda


{×+y=7----->×(-2)
{2×+3y=17

{-2x-2y= -14
{2x+3y=17

y=3


x+y=7
x+3=7
x=7-3
x=4

(X, y), (4, 3)