Question

2x + 3y = 13
X - Y = -1​

Answer 1

Respuesta:

(x,y) = (16/5;11/5)

Explicación paso a paso:

{2x + 3y = 13

{x= 1 + y

2 ( 1 + y ) + 3y = 13

y = 11 /5

x = 1 + 11/5

x = 16/5

( x , y ) = ( 16/5 ; 11/5 )

{ 2 × 16/5 + 3 × 11/5 = 13

{ 16/5 - 11/5 = 1

13 = 13

1 = 1