Math URGENT

An artist intends to paint a 60-square-foot mural on a large wall that is 18 ft wide and 11 ft tall. find the dimensions of the mural if the artist leaves a border of uniform width around it.

what formula do I use please?

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  1. taking off the width of w from each of the four sides, we have
    (18-2w)(11-2w) = 60
    now just wind w

    or, look for two factors of 60 which differ by 7
    5*12 = 60
    ...

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    oobleck

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