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17 May, 18:16

If - 3 (x+2) = 15 what is the value of 2x-1

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  1. 17 May, 18:20
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    -3 (x+2) = 15

    use the distributive property and multiply

    you then get

    -3x - 6 = 15

    add 6 to both sides to cancel out the - 6

    you get - 3x = 21

    divide 21 by - 3

    you get x = 7

    but that's only the first part, since you now have x, plug in the value (7) for x

    2 (7) - 1

    multiply 2 times 7 and you get

    14 - 1

    your final answer:

    13
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