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18 May, 07:36

What is x in the equation 12x - (7-3x) = -8x-30

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  1. 18 May, 10:17
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    First, you will need to flip the values.

    12x - (7-3x) = - 8x - 30

    12x - 7 + 3x = - 8x - 30

    Add like terms.

    15x - 7 = - 8x - 30

    Next, add 7 to each side.

    15x - 7 + 3x + 7 = - 8x - 30 + 7

    15x = - 8x - 23

    Now, add 8x to each side.

    15x + 8x = - 8x - 23 + 8x

    23x = - 23

    Divide each side by 23.

    x = - 1
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