document.write( "Question 906332: Quadrilateral ABCD has side lengths of AB = 2z + 2, BC = 8, CD = 5z – 10, and AD = 8. Find the value of z for which quadrilateral ABCD is a parallelogram.
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Algebra.Com's Answer #549728 by ewatrrr(24785)\"\" \"About 
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2z + 2 = 5x-10 Opposite sides equal
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\n" ); document.write( " 4 = z
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