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

Which advancements were made in mathematics and algebra during the Renaissance? Choose four correct answers. □ the invention and use of zero□ the decimal point
I NEED HELP QUICK 10 points!!! How has pollution affected marine animals in Puget Sound over the years? It has poisoned and killed them. It has forced them to
help please help me
What can teachers do to sustain girls' early interest in science?
Im literary going bankrupt of points form this LOL
PLS HELPP WHAT IS THE ANSWER???
When you normally go to Dunkin Donuts you order a large coffee with Two Sugars which is really sweet and just how you like it today was really hot out so you de
I need help finding both conjugate acid and base
90 POINTS PLSSSSS ANSWER ASAP ⦁ Write the abbreviation of the state on the map next to its capital below. _____Albany _____Charleston _____Hartford _____Madison
What right is denied to a noncitizen in the United States