document.write( "Question 1193342: We have trapezoid ABCD with AB ∥ DC also, M and N are midpoints of AD and BC, respectively.
\n" ); document.write( "Given:AB = 4x + 5 and DC = 6x − 3
\n" ); document.write( "Find: MN in terms of x
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Algebra.Com's Answer #825350 by Boreal(15235)\"\" \"About 
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the midpoint is half the sum (average) of the two lines given
\n" ); document.write( "that is half of 10x+2 or 5x+1=MN
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