algebra

Can you check these problems?

3x+13=96
x=6

-8-7x=-120
x=8

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  1. Both are incorrect. Show your work and we can find the error.

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  2. Let's prove your answers.

    (3 * 6) + 13 = 96
    18 + 13 = 31 -- not 96.

    The second one isn't right, either.

    Try the first problem this way:

    3x + 13 = 96
    3x + 13 - 13 = 96 - 13
    3x = 83
    x = 27.66667

    Please redo the second problem.

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    Ms. Sue

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