document.write( "Question 932889: In another 3 years Tommy will be 3 times as old as he was 3 years ago. How old is he now? \n" ); document.write( "
Algebra.Com's Answer #566435 by ptfile(81)![]() ![]() You can put this solution on YOUR website! Let x+3 = Tommy's age in 3 years \n" ); document.write( " x = Tommy's current age \n" ); document.write( " x-3 = Tommy's age 3 years ago\r \n" ); document.write( "\n" ); document.write( "In another 3 years, Tommy will be 3 times as old as he was 3 years ago. \n" ); document.write( "x+3 = 3(x-3) \n" ); document.write( "x+3 = 3x-9 \n" ); document.write( " x = 3x-12 \n" ); document.write( " 12 = 2x \n" ); document.write( " 6 = x\r \n" ); document.write( "\n" ); document.write( "Check \n" ); document.write( "6+3 = 3(6-3) \n" ); document.write( " 9 = 3(3) \n" ); document.write( " 9 = 9 \n" ); document.write( " |