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11 December, 03:57

Length of an idicated side of a triangle when the perimeter = 6x. side 1 = x 3. side 2 = 2x 4. find side 3.

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  1. 11 December, 04:05
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    6x=x+3+2x+4+y

    solve for y

    6x=x+3+2x+4+y

    6x=3x+7+y

    get everything but y on the right hand side

    6x-3x-7=y

    3x-7=y third side/

    check

    6x=x+3+2x+4+3x-7

    6x=6x

    ok
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