crysssss crysssss
  • 06-04-2015
  • Mathematics
Answered

solving liner system, substitution method

2x-y=23
x-9=-3

Answer :

Doodlesandlolly Doodlesandlolly
  • 06-04-2015
the easiest way to solve that would be elimination method, but if you have to do substitution:
x-9=-3
 add 9 to each side to get 
x=6
then plug 6 into the other equation for x
2(6)-y=23
and solve for y :)

Answer Link
Panoyin
Panoyin Panoyin
  • 06-04-2015
2x - y = 23
x - 9 = -3

x - 9 = -3
  + 9  + 9
     x = 6
2(6) - y = 23
  12 - y = 23
- 12      - 12
       -y = 11
         y = -11
(x, y) = (6, -11)
Answer Link

Other Questions

An accomplice helps a criminal
Explain the positives and negatives of modernization in Middle Eastern countries
The credibility of a work deals mainly with
what does number sentence mean
You are running a circular track The distance around the track is 200m Points G H R J and K are spaced evenly around the track If you eun along arc GHJ arc JKHa
what types of storage can be used to access data from another computer
How to write 4110 in words
The pier is 200 meters long each board is 80 centimeters wide how many boards are in the pier
Select all that apply Which of the following are characteristics of eukaryotes A single or multicelled structure B no distinct nucleus C membranebound organelle
Which sentence does not contain any errors in the use of italics or quotation marks A The largest of the three ships on Columbuss first voyage was the Santa Mar