pukhalskiya
pukhalskiya pukhalskiya
  • 24-05-2022
  • Mathematics
contestada

Solve the following systems using the elimination method.
10x-8y=-6
-10x+3y=21

Respuesta :

oliversai
oliversai oliversai
  • 24-05-2022

Answer:

y= -3, x= -3

Step-by-step explanation:

Add the 2 equations to get rid of x:

-5y = 15

Divide both sides by 5:

y = -3

Substitute value of y into an equation to get x (I chose the first one

10x-8y = -6)

10x-8(-3) = -6

10x+24 = -6

Subtract both sides by 24:

10x = -30

Divide both sides by 10:

x = -3

Answer Link
KJennett KJennett
  • 24-05-2022
Subtract 10x-10x to cancel each other out
-8y+3y=-5y
-6+21=15
15/-5
Answer: -3
Answer Link

Otras preguntas

Which of the following is not a role of members of Congress? make the laws serve on committees enforce the laws serve and represent their constituents
Strong language often means? A)weak feelings B)shared knowledge C)strong feelings D)risk-taking?
What happened in 1890 concerning civil rights? twenty states passed laws making it illegal to discriminate a person because of their race twenty states passed l
why is he freedom to protest an important right in a democratic society?
Identify one way in which bacteria differ from humans. a. Bacteria are single-celled. b. Bacteria do not reproduce. c. Only humans take in energy. d. Humans
why do you think the writs of assistance legalized by the revenue act angered the colonist
Find the missing number 12,24,72,288 and blank
40 is 1/10 of 400 yes of no
What is 15/27 in simplest form
Which of the following statements best describes the spread of communism in the years immediately following World War II?