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10 December, 00:00

If 2x - 7 = 4x + 15, then x = - 11

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  1. 10 December, 00:20
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    2x - 7 = 4x + 15

    2 (-11) - 7 = 4 (-11) + 15

    do the brackets first

    (2) (-11) = - 22

    (4) (-11) = - 44

    -22-7 = - 44+15

    -29 = - 29

    Answer:

    All real numbers
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