Hi



length of a rectangle exceeds the width by 9 inches

Let x and (x+9)represent the width and length respectively

 2(x+9) + 2x = 86"

    4x = 68"

     x = 17", the width.  The length is 26"   (17" + 9")



CHECKING our Answer***

  2*26" + 2*17" = 86" 







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