document.write( "Question 8162: A triangle has three sides: 3x+7, 4x-9, and 5x+6. What is the expression that represents the perimeter? \n" ); document.write( "
Algebra.Com's Answer #4501 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
perimeter is the sum of the lengths, so we get\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "3x+7 + 4x-9 + 5x+6
\n" ); document.write( "--> 12x + 4 ... this is good enough, or we can factorise it as 4(3x + 1)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "jon.
\n" ); document.write( "
\n" ); document.write( "
\n" );