Question

× - 2y¨= -7
5× + 3y = -9

Answer 1

Respuesta:

( x , y ) = (-3 , 2 )

Explicación paso a paso:

x = -7 + 2y

5x +3y = -9  

5( -7+2y )+3y=-9

y= 2

x=-7 +2x2

x=-3

(x,y) = (-3,2)

-3-2x2=-7

5x(-3)+3x2=-9

-7=-7

-9=-9

(x,y) = (-3, 2)