document.write( "Question 983325: Jessica is 6 years older than Tiffany. Jessica and Tiffany first met two years ago. Ten years ago, Jessica was 3 times as old as Tiffany.\r
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document.write( "How old is Tiffany now? \n" );
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Algebra.Com's Answer #604101 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "Jessica is 6 years older than Tiffany \n" ); document.write( "J = 6 + T \n" ); document.write( "Ten years ago, Jessica was 3 times as old as Tiffany \n" ); document.write( "J - 10 = 3(T - 10) \n" ); document.write( "Replace 'J' in bottom equation with (6 + T) from top equation. \n" ); document.write( "(6 + T) - 10 = 3(T - 10) \n" ); document.write( "Remove brackets \n" ); document.write( "6 + T - 10 = 3T - 30 \n" ); document.write( "Collect like terms \n" ); document.write( "T - 4 = 3T - 30 \n" ); document.write( "T - 3T = -30 + 4 \n" ); document.write( "-2T = -26 \n" ); document.write( "T = 13 \n" ); document.write( "Tiffany = 13 years old \n" ); document.write( "Jessica = 19 years old \n" ); document.write( "Hope this helps:-) \n" ); document.write( " |