document.write( "Question 99684: a no. consist of two digits of which ten's diit exceed the unit's digit by 6 . the no. itself is equal to the ten times the sum of its digits. find the number. \n" ); document.write( "
Algebra.Com's Answer #72564 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! LET Y (UNITS DIGIT) PLUS 6 EQUAL THE TENS DIGIT X \n" ); document.write( "Y=X-6 \n" ); document.write( "10(X+Y)=10X+Y REPLACE Y WITH (X-6) \n" ); document.write( "10(X+X-6)=10X+(X-6) \n" ); document.write( "10(2X-6)=10X+X-6 \n" ); document.write( "20X-60=11X-6 \n" ); document.write( "20X-11X=60-6 \n" ); document.write( "9X=54 \n" ); document.write( "X=54/9 \n" ); document.write( "X=6 WHICH IS THE TENS DIGIT \n" ); document.write( "Y=6-6=0 FOR THE UNITS DIGIT' \n" ); document.write( "PROOF \n" ); document.write( "10(6+0)=10*6+0 \n" ); document.write( "60=60\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |