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22 March, 16:26

Find the solution of this system of equations - 2x+8y=14 and - 2x-2y=-26

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  1. 22 March, 16:46
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    Note that both equations contain - 2x so if we subtract them this will disappear.

    -2x + 8y = 14

    -2x - 2y = - 26 Subtract:-

    0 + 10y = 40

    y = 4

    Substitute fro y in the first equation:-

    -2x + 8 (4) = 14

    -2x = 14 - 32 = - 18

    x = 9

    Answer x = 9 y = 4
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