Respuesta :

Mekhala

Answer:

Step-by-step explanation:

3x + 2y = 8 ------(1)

-x + y = -11 -------(2)

(2) multiply by 3;

3 * (-x + y) =  3 * (-11 )

-3x + 3y = -33 ------(3)

(1) + (3)

(3x + 2y)  + ( -3x + 3y)   = 8 + (-33)

3x -3x + 2y + 3y = -25

5y = -25

y= -5

value of y substitution in to (2);

-x + y = -11

-x + (-5) = -11

-x = -6

x=6
3x=8-2y
X=8-2y/3
-(8-2y/3)+y=-11
-8+2y/3+y=-11
Y=-11+8-2y/3
Y=-11x3/1x3+8-2y/3
Y=(-33+8-2y)/3
Y=(-25-2y)/3

2y=8-3x
Y=8-3x/2
-x+8-3x/2=-11
-x=-11-8+3x/2
-x=-19+3x/2
X=-(-19+3x/2)

Otras preguntas