Question 1108651
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<pre>
Perimeter = L + W + L + W


20 = (3x+4) + (x-2) + 3x+4) + (x-2),

20 = 8x + 4,

20 - 4 = 8x  ====>  8x = 16  ====>  x = {{{16/8}}} = 2.


<U>Answer</U>.  x = 2.
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Solved.