document.write( "Question 714844: a boy is three years older than his sister.the sum of their square ages is 369.how old are they \n" ); document.write( "
Algebra.Com's Answer #439023 by JAE96(1)![]() ![]() ![]() You can put this solution on YOUR website! 369= (x+3)+ (x)\r \n" ); document.write( "\n" ); document.write( "369= (2x + 3)\r \n" ); document.write( "\n" ); document.write( "369 - 3 = 2x +3 -3\r \n" ); document.write( "\n" ); document.write( "366/2=2x/2\r \n" ); document.write( "\n" ); document.write( "183 = x (The sister's age)\r \n" ); document.write( "\n" ); document.write( "183+3 = 186(The Brother's age)\r \n" ); document.write( "\n" ); document.write( "Plug it back in...\r \n" ); document.write( "\n" ); document.write( "369 (186)+(183)\r \n" ); document.write( "\n" ); document.write( "369=369\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |