Question

matemática ayudaa plis

27dc8656d5931d6ca814b114a18cb848.pdf

Answer 1

Respuesta:

a)

{x +2=-2y

{2y=6+3x

x + 2 = − (6+3x)

x = -2

2y=6+3× (-2)

y=0

(x, y) = (-2,0)

{-2+2=-2x0

{ -3× (-2)+2x0=6

{0=0

{ 6=6

(x, y) = (- 2, 0)

b)

{y=-3+x

{2x y=-4

2x - (- 3 + x) = - 4

x = - 7

y = - 3 + (- 7)

y = - 10

(x, y) = (- 7, - 10)

{-7-(-10) = 3

{2× (-7)-(-10)=-4

{3=3

{-4 =-4

(x, y) = (- 7, - 10)

c)

{x = 4 + 3y

{2x 4y=-2

2(4 + 3y) - 4y = - 2

y = - 5

x = 4 + 3(- 5)

x = - 11

(x, y) = (- 11, - 5)

{-11-3x (-5)=4 {

2× (-11)-4×( x(-5)=-2

{4 = 4

{-2=-2

(x, y) = (- 11, - 5)