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20 April, 03:50

Add the followinf expresion

b. x - 3y + 4z, y - 2x - 8z, 5x - 2y - 3z

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  1. 20 April, 07:25
    0
    4x - 4y - 7z

    Step-by-step explanation:

    x - 3y + 4z + y - 2x - 8z + 5x - 2y - 3z =

    (x - 2x + 5x) + (y - 3y - 2y) + (4z - 8z - 3z) =

    4x + ( - 4y) + (-7z) =

    4x - 4y - 7z <===
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