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26 March, 04:20

the sum of three numbers is - 4. The second number decreased by the third is equal to the first. the sum of the first and second numbers is - 5. Find the numbers

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  1. 26 March, 04:43
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    Step-by-step explanation:

    X + Y + Z = - 4 (given)

    X + Y = - 5 (given)

    -5 + Z = - 4 (x + Y = - 5)

    Z = 1

    Y - Z = X (given)

    (Y - 1) + Y = - 5 (replacing value of X + Y = - 5)

    2Y = - 4

    Y = - 2

    X + Y = - 5

    X + (-2) = - 5

    X = - 3

    Therefore

    X = - 3

    Y = - 2

    Z = 1
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