panocha900 panocha900
  • 01-06-2022
  • Mathematics
contestada

Solve system of equation using elimination by addition.

Will give brainliest!!

Solve system of equation using elimination by addition Will give brainliest class=

Respuesta :

notleoprobably
notleoprobably notleoprobably
  • 01-06-2022

Answer:

[tex]x = 2, y = -1[/tex]

Step-by-step explanation:

We can add the 2 equations together to solve for y.

[tex](-3x + 5y) + (3x + 7y) = (-11) + (-1)\\-3x + 3x + 5y + 7y = -11 -1\\12y = -12\\y = -1[/tex]

Now we can solve for x by substituting y in one of the original equations.

[tex]3x + 7y = -1\\3x + 7(-1) = -1\\3x - 7 = -1\\3x = 6\\x = 2[/tex]

Those are the answers

- Kan Academy Advanced

Answer Link

Otras preguntas

The explosive use of social media is an example of which environment?.
What is the midpoint of the segment shown below? 10 (2.4) O A. (2, -3) O B. (2.-) 3 - - 10 10 O C. (4.-) (2.-7) - 10 + O D. (4, -3)
The high magnification of zoom, telephoto, and wide-angle lenses are exceptionally fun because they give photographers the gift of proximity. A. True Or В.
The Taliban shot Malala on her school bus and survived. She is now the face of 57 million children out of school. True or False​
what is the estimated sum of 6/7 plus 4/7
Which expressions are equivalent to the expression below? -1/3 - (-4 + 1/6) There are more then one answer your choices are A. 1/6 - 1/3 - 4 B. -1/3 + 4 + 1/6
Find the equation of the exponential function represented by the table below
PLEASE help me verify the identity!!
find the distant between-7 -3 3/2
0.1 x 1.6 decimals xd