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

If you are breathless and unable to talk normally during exercise you should
please answer this question
The atmosphere is unaffected by changes in the geosphere. Please select the best answer from the choices provided T F
Which type of energy transformation is taking place when natural gas is used to heat water? A.chemical energy into thermal energy B.thermal energy into mechanic
simplify. (½) ²− 6(2−2/3)
a neutral atom with 12 protons hasa. 18 electrons.b. 6 electrons.c. 12 electrons.
What type of number best describes 0.9,which is 3.0?Explain
list of south korea's allies and enemies....
which party did william h taft represent in 1912
How does the medium of Interview with Marielle Tsukamoto affect the structure of the main ideas and supporting sentences? The structure of the response is less