kyrarix kyrarix
  • 03-12-2018
  • Mathematics
contestada

Solve the system of linear equations. What is the value of y?



9x−6y=15

6x+21y=60

Respuesta :

goldeneagle1
goldeneagle1 goldeneagle1
  • 03-12-2018

Answer:

y = 5

y = 2.2

Step-by-step explanation:

For the first one:

9x = 9 x1 = 9

9 - 6 = 3

3y = 15

15 ÷ 3 = 5

y = 5

For the second one:

6x = 6 x 1 = 6

6 + 21 = 27

27y = 60

60 ÷ 27 ~ 2.2

y = 2.2

Answer Link

Otras preguntas

Are older vehicles better made than newer vehicles? (Explain)
1) Using a keyword search tool to see what people are searching for is an example of what type of data source? A) public data B) reviews C) focus group D) seco
Hola Brainlians!!A simple question for you all.composed a dialogue between two friends who are meting in school library after along time_________For :-●Moderato
The “address” of a place using absolute and relative terms
The basic building blocks of a protein are what?
Which element atom will form a LARGER radius when it becomes an ion? Na Mg Al Cl
This piece of art is representative of what movement? A. rococo B. Baroque C. Romantic D. neoclassicism
April, May and June are counting up the money they've saved from their weekly allowance. May has 20% less than April, and June has 20% more than May. Together,
How do the geography and resources of Chile and Peru help these countries' economies? Include at least one example for each country in your answer.
2/3 x 1/7 = Need help not sure if I got it right