document.write( "Question 199601: 3+(7+8)=(?+?)+? what is the answer and what property is this. \n" ); document.write( "
Algebra.Com's Answer #149994 by vleith(2983)\"\" \"About 
You can put this solution on YOUR website!
3+(7+8)=(?+?)+?
\n" ); document.write( "3+(7+8)=(3+7)+8\r
\n" ); document.write( "\n" ); document.write( "Associative property for addition
\n" ); document.write( "
\n" );