ladygaga1231 ladygaga1231
  • 11-01-2018
  • Mathematics
contestada

Solve the system of linear equations by substitution. 8x−1/3y=0; 12x+3=y

Please help!

Respuesta :

cdw2014
cdw2014 cdw2014
  • 11-01-2018
Substitution involves replacing part of one equation with the other equation. In this case, the second equation is already solved for y. All we have to do is replace y in the first equation with 12x+3.

8x - (1/3)(12x+3) = 0

Distribute the -1/3

8x - 4x - 1 = 0

4x - 1 = 0

4x = 1

x = 1/4

Now plug 1/4 in for x to solve for y.

12(1/4) + 3 = y

y = 6

Answer: (1/4, 6)



Answer Link

Otras preguntas

Which word represents the subject of this sentence? “I ‘m just inviting you to join me in my uncertainty.”a.me
Directions: Select each correct answer. More than one answer may be correct. Which of the following describes a likely reason for organisms of the same species
All deaf news sites have captions
solving the equation and something to do with log
A motorcycle listed for 975$si sold for 820$ .what is the rate of discount that was allowed?​
How does the energy of an earthquake travel through Earth?​
What is more important communicating in a way that is easy for you or communicating in a way so that other can understand you? Is there a difference?
What was the belief of Coolidge in regards to the involvement of government in the economy?​
Which is not a characteristic that all living organisms share
Find each sum or difference -31+(-4)