document.write( "Question 1184104: Devante is 9 years older than Kelly. In 12 years the sum of their ages will be 73. How old is Kelly now? \r
\n" ); document.write( "\n" ); document.write( "it is asking me for the equation and the answer
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #814644 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( "let Kelly’s age be \"x\"
\n" ); document.write( "then, if Devante is\"+9\" years older than Kelly, he is \"x%2B9\"\r
\n" ); document.write( "\n" ); document.write( "in \"12\" years Kelly will be \"x%2B12\"years old, and Devante will be \"x%2B9%2B12=x%2B21\"\r
\n" ); document.write( "\n" ); document.write( "if in \"12\" years the sum of their ages will be \"73\", we have\r
\n" ); document.write( "\n" ); document.write( "\"x%2B12%2Bx%2B21=73\"\r
\n" ); document.write( "\n" ); document.write( "\"2x%2B33=73\"\r
\n" ); document.write( "\n" ); document.write( "\"2x=73-33\"\r
\n" ); document.write( "\n" ); document.write( "\"2x=40\"\r
\n" ); document.write( "\n" ); document.write( "\"x=20\"\r
\n" ); document.write( "\n" ); document.write( "=> Kelly is \"20\" years old now \r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );