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6 July, 15:32

Substitution for {2x-3y=11 and - x + 2y = - 6

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  1. 6 July, 15:36
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    Step-by-step explanation:

    -x+2y=-6

    x-2y=6

    x=2y+6

    substitute in 2x-3y=11 gives us 2 (2y+6) - 3y=11

    4y+12-3y=11

    y=-1

    -x+2 (-1) = -6

    -x=-4

    x=4
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