document.write( "Question 107074: In triangle ABC, AB is 9 cm. shorter that AC, while BC is 3 cm. longer than AC. If the perimeter of the triangle is 48 cm. find the lengths of the three sides. \n" ); document.write( "
Algebra.Com's Answer #77894 by Annabelle1(69)\"\" \"About 
You can put this solution on YOUR website!
let the length of AC be X
\n" ); document.write( "so.....
\n" ); document.write( "AC=x
\n" ); document.write( "BC=x+3
\n" ); document.write( "AB=x-9\r
\n" ); document.write( "\n" ); document.write( "adding the sides together to find the perimeter\r
\n" ); document.write( "\n" ); document.write( "x+ (x+3) + (x-9) = 48
\n" ); document.write( "3x-6=48
\n" ); document.write( "3x=54
\n" ); document.write( "x=18
\n" ); document.write( "so AC=18
\n" ); document.write( "BC= 18+3=21
\n" ); document.write( "AB=18-9=9
\n" ); document.write( "
\n" );