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Math Help - Absolute values HELP!

  1. #1
    kool_blue
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    Absolute values HELP!

    hello, im new to this forum

    i have a test in a week, and i dont know how to solve this question:
    |2x+6|= 3x-1

    can you guys solve it for me. i get the answer of 7 and -1, but the textbook says for some reason it is only 7 is the answer.

    Thanks
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  2. #2
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by kool_blue View Post
    hello, im new to this forum

    i have a test in a week, and i dont know how to solve this question:
    |2x+6|= 3x-1

    can you guys solve it for me. i get the answer of 7 and -1, but the textbook says for some reason it is only 7 is the answer.

    Thanks
    Put x = -1 into your original equation.

    Is |4| = -4?

    -Dan
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