document.write( "Question 261876: suppose M is between L and N use segment Additing postulate to solve for the variable then find lengths of line LM, line MN and line LN.\r
\n" ); document.write( "\n" ); document.write( "LM= 3x+8
\n" ); document.write( "MN= 2x-5
\n" ); document.write( "LN= 23
\n" ); document.write( "

Algebra.Com's Answer #192944 by drk(1908)\"\" \"About 
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M is between L and N.
\n" ); document.write( "LM + MN = LN by segment addition postulate.
\n" ); document.write( "So,
\n" ); document.write( "\"3x%2B8+%2B+2x-5+=+23\"
\n" ); document.write( "combine like terms to get
\n" ); document.write( "\"5x%2B3+=+23\"
\n" ); document.write( "subtract 3 to get
\n" ); document.write( " \"5x+=+20\"
\n" ); document.write( "divide by 5 to get
\n" ); document.write( " \"x+=+4\"
\n" ); document.write( "LM = 20
\n" ); document.write( "MN = 3
\n" ); document.write( "
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