document.write( "Question 338480: Twins Diana and Riana are each 6 years older than their younger brother Kyle. Together, their three ages total 21 years. How old is Kyle?\r
\n" ); document.write( "\n" ); document.write( "I know that K+6 =twins\r
\n" ); document.write( "\n" ); document.write( "K=Kyle
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #242592 by rfer(16322)\"\" \"About 
You can put this solution on YOUR website!
x+x+6+x+6=21
\n" ); document.write( "3x+12=21
\n" ); document.write( "3x=9
\n" ); document.write( "x=3 Kyle
\n" ); document.write( "x+3=9 twins
\n" ); document.write( "
\n" );