document.write( "Question 1041750: Bobby is three years older than twice Arianna's age. If the total of their ages is 9, how old is Bobby, and how old is Arianna? \n" ); document.write( "
Algebra.Com's Answer #656808 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Bobby is three years older than twice Arianna's age. \n" ); document.write( "b = 2a+3 \n" ); document.write( " If the total of their ages is 9, \n" ); document.write( "a + b = 9 \n" ); document.write( "replace b with (2a+3) \n" ); document.write( "a + 2a + 3 = 9 \n" ); document.write( "3a = 9 - 3 \n" ); document.write( " 3a = 6 \n" ); document.write( " a = 6/3 \n" ); document.write( " a = 2 yrs is A's age \n" ); document.write( "then \n" ); document.write( "b = 2(2) + 3 \n" ); document.write( "b = 7 yrs is B's age \n" ); document.write( " \n" ); document.write( " |