document.write( "Question 804578: In 8 years time Tess will be 5 times as old as her age 8 years ago. \n" ); document.write( "
Algebra.Com's Answer #484828 by thejackal(72)![]() ![]() You can put this solution on YOUR website! lets call Tess's age today T \n" ); document.write( "thus, 8 years tess's age was T - 8 \n" ); document.write( "and thus 8 from now (8+T) tess will be 5 times her age 8 years ago (5(T-8))\r \n" ); document.write( "\n" ); document.write( "so how old is Tess?\r \n" ); document.write( "\n" ); document.write( "well, we now have a beautiful linear equation with only one unknown\r \n" ); document.write( "\n" ); document.write( "given as 8+T = 5(T - 8) \n" ); document.write( "simplify to get 8+T = 5T - 40 which leads to 8 + 40 = 5T - T or 48 = 4T\r \n" ); document.write( "\n" ); document.write( "i'm sure you can work out T on you own now \n" ); document.write( " |