document.write( "Question 27438: I need your help to show the algebraic, (if there's such a word), formula for the following.\r
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document.write( "There are 20 children in a class. There are 8 more boys than girls. How many boys and girls are there in the class?\r
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document.write( "I know the answer, I just don't know how to get there. I know there are 6 girls and 14 boys in the class. Please help. I believe the answer is right under my nose but just can't grasp it.\r
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document.write( "Thanks,\r
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document.write( "tgarel \n" );
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Algebra.Com's Answer #14898 by longjonsilver(2297)![]() ![]() You can put this solution on YOUR website! Let b = number of boys. \n" ); document.write( "therefore the number of girls = b-8\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "and also, boys + girls = 20 \n" ); document.write( "--> b + b-8 = 20 \n" ); document.write( "2b - 8 = 20 \n" ); document.write( "2b = 28 \n" ); document.write( "b = 28/2 \n" ); document.write( "b = 14\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "and so number of girls is 14-8 ---> 6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "jon. \n" ); document.write( " \n" ); document.write( " |