You can put this solution on YOUR website! The perimiter of a rectangle is 38 units. Two sides are X, the other two are 2X - 5. How do I find X?
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perimeter = total length of all four sides
38 = x + x + 2x-5 + 2x-5
38 = x + x + 2x + 2x-10
38 = 6x-10
48 = 6x
8 = x
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answer: 8 units