document.write( "Question 1065417: assume that point d is a midpoint of ab. find x and each segment length. ad = 2x - 1, ab = 6x - 20. \n" ); document.write( "
Algebra.Com's Answer #680581 by ankor@dixie-net.com(22740)\"\" \"About 
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assume that point d is a midpoint of ab.
\n" ); document.write( " find x and each segment length. ad = 2x - 1, ab = 6x - 20.
\n" ); document.write( ":
\n" ); document.write( "a---------------d----------------b
\n" ); document.write( ":
\n" ); document.write( "d is the mid-point, therefore:
\n" ); document.write( "ad = \"1%2F2\"ab
\n" ); document.write( "multiply both sides by 2
\n" ); document.write( "2ad = ab
\n" ); document.write( "replace ad with (2x-1); replace ab with (6x-20)
\n" ); document.write( "2(2x-1) = 6x - 20
\n" ); document.write( "4x - 2 = 6x - 20
\n" ); document.write( "-2 + 20 = 6x - 4x
\n" ); document.write( "18 = 2x
\n" ); document.write( "x = 18/2
\n" ); document.write( " x = 9
\n" ); document.write( "Therefore
\n" ); document.write( "ad = 2(9) - 1
\n" ); document.write( "ad = 17
\n" ); document.write( "and
\n" ); document.write( "ab = 6(9) - 20
\n" ); document.write( "ab = 54 - 20
\n" ); document.write( "ab = 34 (twice as long as ad) \n" ); document.write( "
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