document.write( "Question 240776: How do I write this problem into an equation:\r
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document.write( "Sean is 20 and his brother is 12. How many years ago was Sean three times as old as his brother? \n" );
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Algebra.Com's Answer #176385 by edjones(8007)![]() ![]() You can put this solution on YOUR website! Let x be the number of years past. \n" ); document.write( "(20-x) / (12-x) = 3 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |