laurenyoungblood23 laurenyoungblood23
  • 01-11-2019
  • Mathematics
contestada

13) -3x - 4y = 8
-4x - 3y=6​

Respuesta :

nguyenminhnguyet82
nguyenminhnguyet82 nguyenminhnguyet82
  • 01-11-2019

Answer:

x = 0, y = -2

Step-by-step explanation:

-3x - 4y = 8  (1)

-4x - 3y=6​ (2)

Multiply (1) by -4 and (2) by -3, we have:

12x + 16y = - 32  (3)

12x + 9y= -18​ (4)

Subtract (4) from (3), we have:

(12x + 16y) - (12x + 9y) = - 32  - (-18)

<=> 7y = - 14

=> y = - 2

Replace y with - 2 in (3), we have x = 0

Answer Link

Otras preguntas

How did the depression affect women and children?
State two ways in which a single-celled organism, such as amoeba, and a human body are alike?
Fragment in this sentenceWith her heavy dictonary, Donna thumps the top other ancient computer monitor.  Whenever the color tint flickers from normal to sickly
How did the depression affect women and children?
How do you work out the problem 84 divided by4
What is a series of events that cells go through as they grow and divide
Fragment in this sentenceWith her heavy dictonary, Donna thumps the top other ancient computer monitor.  Whenever the color tint flickers from normal to sickly
how is the expression of sex linked genes both  similar to and different from the expression of autosomal genes?
Fragment in this sentenceWith her heavy dictonary, Donna thumps the top other ancient computer monitor.  Whenever the color tint flickers from normal to sickly
What is the main religion of Latin america