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4 October, 00:29

How do i use systems of equations to eliminate two problems that are: - 9x+2y=-24 and - x+2y=8

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  1. 4 October, 03:38
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    Eliinate y's

    multiply top eqatyion by - 1 and add to 2nd

    9x-2y=24

    -x+2y=8 +

    8x+0y=32

    8x=32

    divid both sides b y8

    x=4

    sub back

    -x+2y=8

    -4+2y=8

    add 4 to both sides

    2y=12

    divide both sides by 2

    y=6

    (x, y)

    (4,6)
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