document.write( "Question 1153397: If a number is added to the numerator of
\n" ); document.write( "7
\n" ); document.write( "8
\n" ); document.write( " and twice as much is added to the denominator, the result is
\n" ); document.write( "8
\n" ); document.write( "13
\n" ); document.write( ".
\n" ); document.write( " Find the number.
\n" ); document.write( "

Algebra.Com's Answer #775609 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
let x be the number added to the numerator\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%287%2Bx%29%2F%288%2B2x%29=8%2F13\"\r
\n" ); document.write( "\n" ); document.write( "13(7+x)=8(8+2x)\r
\n" ); document.write( "\n" ); document.write( "91+13x=64+16x\r
\n" ); document.write( "\n" ); document.write( "3x=27
\n" ); document.write( "x=9\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );