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23 March, 08:34

Solve and check x+6=2x-7

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  1. 23 March, 10:25
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    This is a linear equation in x.

    x + 6 = 2x-7

    Adding - 2x to both sides we obtain,

    x + 6 - 2x = - 7

    Now let's again add - 6 to both sides of the equation, This implies that:

    x-2x = - 7-6

    Let us simplify further to obtain,

    -x = - 13

    Let's multiply through by - 1 to obtain

    x = 13

    CHECK

    13 + 6 = 2 (13) - 7

    13 + 6 = 26 - 7

    19 = 17
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