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1 January, 16:18

Solve this system of equation using substitution y=2x-4 x+2y=10

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  1. 1 January, 16:39
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    Y=2x-4

    X+2y=10

    Put y into the x equation

    X+2 (2x-4) = 10

    Expand and simplify

    X+4x-8=10

    5x-8 = 10

    5x=10+8

    5x=18

    X=18/5

    Insert x into the original equation to get y

    Y=2x-4

    Y=2 (18/5) - 4

    Y=16/5
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