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10 December, 07:12

Three times the sum of a number and 3 is - 18 (equation)

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  1. 10 December, 10:59
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    So 3 times x+3 is - 18 so

    3 (x+3) = - 18

    so distribute

    3x-9=-18

    add 9 to both sides

    3x=-27

    divide both sides by 3

    x=-9
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