document.write( "Question 977923: The sum of two digits of a two digit number is 15. If 9 is added to it, the digits are reversed. Find the number. \n" ); document.write( "
Algebra.Com's Answer #599430 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! a+b=15 \n" ); document.write( "10*a+b+9=10*b+a \n" ); document.write( "9a+9=9b \n" ); document.write( "a+1=b \n" ); document.write( "a+a+1=15 \n" ); document.write( "2a=14 \n" ); document.write( "a=7 \n" ); document.write( "b=8 \n" ); document.write( "the number is 78 \n" ); document.write( "check \n" ); document.write( "78+9=87\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |