document.write( "Question 813398: Let Medium = x
\n" ); document.write( "Therefore longest = x+10
\n" ); document.write( "And the shortest = x-5
\n" ); document.write( "So x+x+10+x-5=65
\n" ); document.write( "3x+5=65
\n" ); document.write( "3x=60
\n" ); document.write( "x=20
\n" ); document.write( "Therefore the sizes of the three sides of the triangle from the longest are 30, 20 and 15 respectively
\n" ); document.write( "

Algebra.Com's Answer #490032 by Tunechi(1)\"\" \"About 
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Let Medium = x
\n" ); document.write( "Therefore longest = x+10
\n" ); document.write( "And the shortest = x-5
\n" ); document.write( "So x+x+10+x-5=65
\n" ); document.write( "3x+5=65
\n" ); document.write( "3x=60
\n" ); document.write( "x=20
\n" ); document.write( "Therefore the sizes of the three sides of the triangle from the longest are 30, 20 and 15 respectively
\n" ); document.write( "
\n" );