document.write( "Question 1108670: Edwin is four times as old as Joshua. In 12 years, Joshua's
\n" ); document.write( "age will be half that of Edwin's. How old are they? \n" ); document.write( "
Algebra.Com's Answer #723686 by Edwin McCravy(20062)\"\" \"About 
You can put this solution on YOUR website!
Edwin is four times as old as Joshua.
\r\n" );
document.write( "\"matrix%281%2C5%2CE%2C%22%22%2C%22%22=%22%22%2C%22%22%2C4J%29\"
In 12 years, Joshua's age will be half that of Edwin's.
\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "From the first equation, substitute 4J for E in the \r\n" );
document.write( "second equation.  Solve for J to find Joshua's age.\r\n" );
document.write( "Then substitute that in E = 4J to find Edwin's age.\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );