document.write( "Question 1181713: Toby is n years old and Adrian is d years younger than Toby.
\n" );
document.write( "Write down a formula for S where S years is the sum of their ages. \n" );
document.write( "
Algebra.Com's Answer #811613 by mananth(16946)![]() ![]() You can put this solution on YOUR website! Toby is n years old and Adrian is d years younger than Toby.\r \n" ); document.write( "\n" ); document.write( "toby ---n years \n" ); document.write( "adrian's age = n-d\r \n" ); document.write( "\n" ); document.write( "S = n +n-d\r \n" ); document.write( "\n" ); document.write( "S= 2n-d \n" ); document.write( " |