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19 June, 12:08

If 13 is added to a number and the sum is doubled the result is - 10 less than the number

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  1. 19 June, 12:16
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    Equation for solving: (13+x) 2 = - 10-x

    Step one: 26+2x=-10-x

    step two: 26+3x=-10

    step three: 3x=-36

    answer: - 12
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