algerbra

3x-2y=8
2x=2y=22
How i solve with substitution?

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  1. Please correct your typo.

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    👩‍🏫
    Ms. Sue
  2. how do i solve with substitution?

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  3. 3x-2y=8
    2x=2y=22
    ===========
    I assume you mean
    3x-2y=8
    2x-2y=22 ?????

    if so then get y = some function of x from the second equation
    2 x - 2 y = 22
    is
    x - y = 11
    or
    y = (x - 11)

    substitute that in the first equation
    3 x - 2 (x - 11) = 8
    3 x - 2 x + 22 = 8
    x = - 14

    then go back for y
    y - -14 - 11 = -25

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  4. If I guessed wrong on your typo, then I told you how to do it anyway.

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  5. Since the + and = signs are on the same key, I suspect you meant
    3x-2y = 8
    2x+2y = 22 ---->x+y=11 --->y = 11-x

    sub into the 1st
    3x - 2(11-x) = 8
    3x - 22+2x = 8
    5x = 30
    x = 6
    then y = 11-6 = 5

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  6. Good mind reading :)

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