document.write( "Question 120402: There are 10 more boys than girls in a class. If one more girl joins the class, there will be twice as many boys as there are girls. How many boys and how many girls are there in the class? \n" ); document.write( "
Algebra.Com's Answer #88246 by stanbon(75887)\"\" \"About 
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There are 10 more boys than girls in a class. If one more girl joins the class, there will be twice as many boys as there are girls. How many boys and how many girls are there in the class?
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\n" ); document.write( "Original numbers:
\n" ); document.write( "Let number of girls be \"x\", then number of boys is \"x+10\".
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\n" ); document.write( "Numbers after the change:
\n" ); document.write( "# of girls = x+1 ; # of boys is still \"x+10\"
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\n" ); document.write( "EQUATION:
\n" ); document.write( "x+10 = 2(x+1)
\n" ); document.write( "x+10 = 2x+2
\n" ); document.write( "x = 8 (original # of girls) ; x+10 = 18 (original # of boys)
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\n" ); document.write( "Cheers,
\n" ); document.write( "San H.
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