anonymous
  • anonymous
guys ........ x+y=2 and x-y=-2 how can i solve it
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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hba
  • hba
what do u wanna find
anonymous
  • anonymous
do it thru elimination!!
anonymous
  • anonymous
what is elimination

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More answers

hba
  • hba
x+y=2 x-y=-2 2x=0 x=0
anonymous
  • anonymous
HOW >??? i m confused
hba
  • hba
0+y=2 y=2
hba
  • hba
i am also confused
anonymous
  • anonymous
add both the equations...y will be eliminated!!
mathslover
  • mathslover
x+y=2-------------1) x-y=-2 ------------2) solving for x in 1st equation : x+y=2 x=2-y now put this value in 2nd equation x-y=-2 2-y-y=-2 2-2y=-2 -2y=-4 y=\(\frac{-4}{-2}\) y=2 x = 2-y = 2-2=0
hba
  • hba
how did i do it
anonymous
  • anonymous
didnt get you guys
mathslover
  • mathslover
Try to study it ... from videos ..
anonymous
  • anonymous
@hba and Hashir i am rather amazed at how fast memory lost and mental retardation can occur
anonymous
  • anonymous
what is to understnd...add both the equations...2 x = 0
anonymous
  • anonymous
@virtus : short term memory loss :D
hba
  • hba
yeah right
anonymous
  • anonymous
You can use a metrics if you don't understand elimination or substitution
hba
  • hba
ghajni
anonymous
  • anonymous
oh whats a matrix ... is it matrix .... the movie ... i love that movie
anonymous
  • anonymous
:P
ujjwal
  • ujjwal
can't you add equatins @Hashir ?
hba
  • hba
what is that
anonymous
  • anonymous
@ujjwal : what equation ???
anonymous
  • anonymous
equation ... i dont know what is an equation
hba
  • hba
|dw:1342265541343:dw|
anonymous
  • anonymous
cmon guys take it easy on a 7 year old -
anonymous
  • anonymous
2x+2x=5x i guess ???
hba
  • hba
yeah brilliant
hba
  • hba
u are right
anonymous
  • anonymous
Oh Oh Oh I have the anwser..... In the great words of Yoda, who has all the answers. \[ \pi, \sqrt{-1} \hspace{3mm} \sqrt{64}\] Delicious it was. Get it HA
hba
  • hba
its not a pizza that it would be delicious
anonymous
  • anonymous
Set up the augmented matrix
angela210793
  • angela210793
|dw:1342267194746:dw|
anonymous
  • anonymous
you should add both equations as one y is wth postv sign nd othr is wth negtv sign so they will cancel each other nd both x have postv sign so the will be addes nd their sum will 2x nd right side of equation again 2 is wth pstv nd ngtv sign so they will cancl each othr nd x will b equal to 0
anonymous
  • anonymous
|dw:1342278153762:dw|
anonymous
  • anonymous
@angela210793
anonymous
  • anonymous
i can help you....!!!!!
anonymous
  • anonymous
do you know about matrix?
angela210793
  • angela210793
|dw:1342343085258:dw|

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