document.write( "Question 639197: blank + blank + blank = 21 lb.\r
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document.write( "How do I solve? \n" );
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Algebra.Com's Answer #402627 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! x+x+x = 21\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3x = 21\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 21/3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "7+7+7 = 21 \n" ); document.write( " |