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Hashir

  • 3 years ago

guys ........ x+y=2 and x-y=-2 how can i solve it

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  1. hba
    • 3 years ago
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    what do u wanna find

  2. harsimran
    • 3 years ago
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    do it thru elimination!!

  3. Hashir
    • 3 years ago
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    what is elimination

  4. hba
    • 3 years ago
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    x+y=2 x-y=-2 2x=0 x=0

  5. Hashir
    • 3 years ago
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    HOW >??? i m confused

  6. hba
    • 3 years ago
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    0+y=2 y=2

  7. hba
    • 3 years ago
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    i am also confused

  8. harsimran
    • 3 years ago
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    add both the equations...y will be eliminated!!

  9. mathslover
    • 3 years ago
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    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

  10. hba
    • 3 years ago
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    how did i do it

  11. Hashir
    • 3 years ago
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    didnt get you guys

  12. mathslover
    • 3 years ago
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    Try to study it ... from videos ..

  13. virtus
    • 3 years ago
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    @hba and Hashir i am rather amazed at how fast memory lost and mental retardation can occur

  14. harsimran
    • 3 years ago
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    what is to understnd...add both the equations...2 x = 0

  15. Hashir
    • 3 years ago
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    @virtus : short term memory loss :D

  16. hba
    • 3 years ago
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    yeah right

  17. MathDoodler
    • 3 years ago
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    You can use a metrics if you don't understand elimination or substitution

  18. hba
    • 3 years ago
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    ghajni

  19. Hashir
    • 3 years ago
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    oh whats a matrix ... is it matrix .... the movie ... i love that movie

  20. Hashir
    • 3 years ago
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    :P

  21. ujjwal
    • 3 years ago
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    can't you add equatins @Hashir ?

  22. hba
    • 3 years ago
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    what is that

  23. Hashir
    • 3 years ago
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    @ujjwal : what equation ???

  24. Hashir
    • 3 years ago
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    equation ... i dont know what is an equation

  25. hba
    • 3 years ago
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    |dw:1342265541343:dw|

  26. Hashir
    • 3 years ago
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    cmon guys take it easy on a 7 year old -

  27. Hashir
    • 3 years ago
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    2x+2x=5x i guess ???

  28. hba
    • 3 years ago
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    yeah brilliant

  29. hba
    • 3 years ago
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    u are right

  30. MathDoodler
    • 3 years ago
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    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

  31. hba
    • 3 years ago
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    its not a pizza that it would be delicious

  32. Romero
    • 3 years ago
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    Set up the augmented matrix

  33. angela210793
    • 3 years ago
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    |dw:1342267194746:dw|

  34. arbab11
    • 3 years ago
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    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

  35. Hashir
    • 3 years ago
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    |dw:1342278153762:dw|

  36. Hashir
    • 3 years ago
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    @angela210793

  37. muhammad9t5
    • 3 years ago
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    i can help you....!!!!!

  38. muhammad9t5
    • 3 years ago
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    do you know about matrix?

  39. angela210793
    • 3 years ago
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    |dw:1342343085258:dw|

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