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charlie1510

  • 3 years ago

solve using the elimination method. find orderd pair. x-2y=12 4x+2y=8

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  1. Callisto
    • 3 years ago
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    Add the first equation and the second equation eliminate y. Can you do it?

  2. syhna
    • 3 years ago
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    x-2y = 12 4x + 2y = 8 5x = 20 then divide both sides by 5 to get x substitute the value of x to any of the two equation for the value of y *kindly see if i'm correct , if im not sorry :)

  3. ShikhaDessai
    • 3 years ago
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    let x-2y=12 be equation one. let 4x+2y=8 be equation two. since the numerical coefficients of 'y' are the same, and both of them have opposite signs, we add equation one and two.

  4. ShikhaDessai
    • 3 years ago
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    |dw:1357648108564:dw|

  5. ShikhaDessai
    • 3 years ago
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    substitute value of x in equation one... 4 - 2y = 12 -2y = 12 - 4 y = 8/-2 y = -4

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