document.write( "Question 535162: Alex is three times as old as Aaron. If their age total 84 years, how old is Aaron? \n" ); document.write( "
Algebra.Com's Answer #351788 by Iluvidina(15)![]() ![]() You can put this solution on YOUR website! 21 \n" ); document.write( "Their total age is 84 \n" ); document.write( "So you would add Alex and Aaron's ages to get the total of 84 \n" ); document.write( "You don't know either of their ages; you just know that Alex is 3 years older \n" ); document.write( "So, you would use a variable to represent their ages \n" ); document.write( "Aaron's age would be n and Alex's would be 3n because he is three years older \n" ); document.write( "Your equation would be 84=3n+n \n" ); document.write( "Then you would add 3n and n \n" ); document.write( "84=4n \n" ); document.write( "Then you would divide both sides by 4 \n" ); document.write( "So n=21 \n" ); document.write( "that is the last step because Aaron's age was represented by the variable \n" ); document.write( "(if you were finding Alex's age, you would have to multiply 21 by 3, because Aaron's age is 21 and Alex is 3 years older) \n" ); document.write( " |