document.write( "Question 141300: The sum of the digits of a two-digit number is 8. If the digits are reversed, the number is increased by 54. Find the original number. \n" ); document.write( "
Algebra.Com's Answer #102945 by edjones(8007)![]() ![]() You can put this solution on YOUR website! Let the units number be u; the tens be t. \n" ); document.write( "A) t+u=8 \n" ); document.write( "B) 10u+t=10t+u+54 \n" ); document.write( ". \n" ); document.write( "A) u=8-t \n" ); document.write( "B) \n" ); document.write( "10(8-t)+t=10t+8-t+54 \n" ); document.write( "80-10t+t=9t+62 \n" ); document.write( "80-9t=9t+62 \n" ); document.write( "18t=18 \n" ); document.write( "t=1 \n" ); document.write( "u=7 \n" ); document.write( "The number is 17. \n" ); document.write( ". \n" ); document.write( "Check: \n" ); document.write( "71-17=54 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " \n" ); document.write( " |