Respuesta :
Explicación paso a paso:
{2x - y = 5
{x + y = 4
{-y = 5 - 2x
{y = 4 - x
{y = - 5 + 2x
{y = 4 - x
-5 + 2x = 4 - x
2x + x = 4 + 5
3x = 9
x = 3
y = 4 - 3
y = 1
(x, y) = (3, 1)
Besitos OvO
Explicación paso a paso:
{2x - y = 5
{x + y = 4
{-y = 5 - 2x
{y = 4 - x
{y = - 5 + 2x
{y = 4 - x
-5 + 2x = 4 - x
2x + x = 4 + 5
3x = 9
x = 3
y = 4 - 3
y = 1
Besitos OvO