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sloppycanada

  • one year ago

Solve 2x – 5y = 1 by the elimination method. 3x – 4y = -2 x = .66 y = 1

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  1. sepeario
    • one year ago
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    Do you want me to verify your answers?

  2. sepeario
    • one year ago
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    because unfortunate you are wrong.

  3. sloppycanada
    • one year ago
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    I was afraid of that...

  4. sloppycanada
    • one year ago
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    @Sepeario

  5. sepeario
    • one year ago
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    i shall show you by your chosen method of elimination.

  6. sepeario
    • one year ago
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    say we have equation 1 (the first) and the second equation equation 2. let's multiply eq 1 by 3 so we have 6x-15y=3 and eq 2 by 2 so we have 6x-8y=-2

  7. sepeario
    • one year ago
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    What do you get if you subtract the two newly formed equations?

  8. sloppycanada
    • one year ago
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    -23y = 5

  9. sepeario
    • one year ago
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    oops the second new equation is 6x-8y=-4

  10. sepeario
    • one year ago
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    just check your working, you need to remember that subtracting a negative equals an addition instead.

  11. sloppycanada
    • one year ago
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    -7y = 7

  12. sloppycanada
    • one year ago
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    y = -1

  13. sepeario
    • one year ago
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    good

  14. sepeario
    • one year ago
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    now substitute that value to find x.

  15. sloppycanada
    • one year ago
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    x = -2

  16. sepeario
    • one year ago
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    good job!

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spraguer (Moderator)
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