document.write( "Question 1072864: Billy is 3 times as old as Katherine and Billy is 10 years older than Katherine. \n" ); document.write( "
Algebra.Com's Answer #687722 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
\"system%28b=3k%2Cb=k%2B10%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Two expressions for b are equal.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "k=5\r
\n" ); document.write( "\n" ); document.write( "b=15
\n" ); document.write( "
\n" );