document.write( "Question 769356: the middle digit of 3 digit number is 8 and the sum of the digits is 18. the difference between the number and the number formed by reversing the digits is 198.find the number. \n" ); document.write( "
Algebra.Com's Answer #468804 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! the middle digit of 3 digit number is 8 and the sum of the digits is 18. the difference between the number and the number formed by reversing the digits is 198.find the number. \n" ); document.write( "*** \n" ); document.write( "let u=units digit \n" ); document.write( "t=tens digit=8 \n" ); document.write( "h=hundreds digit \n" ); document.write( ".. \n" ); document.write( "u+t+h=18 \n" ); document.write( "u+8+h=18 \n" ); document.write( "u+h=10 \n" ); document.write( "u=10-h \n" ); document.write( ".. \n" ); document.write( "(100h+80+u)-(100u+80+h)=198 \n" ); document.write( "100h+80+u-100u-80-h=198 \n" ); document.write( "99h-99u=198 \n" ); document.write( "99h-99(10-h)=198 \n" ); document.write( "99h-990+99h=198 \n" ); document.write( "198h=990+198=1188 \n" ); document.write( "h=1188/198=6 \n" ); document.write( "u=10-h=4 \n" ); document.write( "t=8 \n" ); document.write( "number: 684 \n" ); document.write( " \n" ); document.write( " |