Respuesta :

-4x + 3y =19
Y= 3x + 13

-4x + 3(3x + 13) =19

-4x + 9x + 39 =19

5x + 39 =19
-39 -39

5x = -20
Divide by 5 on both sides
Then you get
X = -4

Answer:

-4

Step-by-step explanation:

16+3y=19

-16      -16

3y=3

--------

3    3

y=1

1=-12+13

1=1