amaqueda
amaqueda amaqueda
  • 02-04-2022
  • Mathematics
contestada

Solve the system by substitution.
8x +y = 4
-23 – 8= y

Respuesta :

rspill6
rspill6 rspill6
  • 02-04-2022

Answer:

(2,-12)

Step-by-step explanation:

Correct equations:

  8x+y=4

 -2x-8=y

------------------

Rearrange the first equation:

8x+y=4

y=4-8x

Now use this value of y in the second equation:

-2x-8=y

-2x-8=4-8x

6x = 12

x = 2

When x = 2:

y=4-8x

y=4-8(2)

y = -12

(2,-12)

--

One can also graph the two equations and find the point they intersect.  See the attached graph.

Ver imagen rspill6
Answer Link

Otras preguntas

A library has 800 books and is adding 500 more books each year which is linear or exponential
True or false: religion and science always disagree.
What is the unit rate for 4543.08 km in 52.4 h? Enter your answer, as a decimal, in the box.
You know that you can ride your bike 8 miles in 20 minutes. At the same pace, how many miles would you go in 2 hours?
_______ vaults were used to construct the nave of the church of sainte-madeleine in vézelay in france in the twelfth century.
In “A Worn Path” by Eudora Welty, how is Phoenix’s use of her benefit heroic?
Rent-a-drive is a car rental company. it prices its cars based on operations-oriented pricing. in this case, rent-a-drive:
What is the equation in slope intercept form of the line that contains the point (8, -2) and has a y-intercept of -4?
What in the name of these compounds indicates that these molecules have a double or triple bond?
Which is the last step used in managerial decision making?