document.write( "Question 365359: the units digit of a two digit number exceeds twice the tens digit by 1, the sum of its digits is 10 what is the number \n" ); document.write( "
Algebra.Com's Answer #260510 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let tens digit be x \n" ); document.write( "units digit be y \n" ); document.write( ".. \n" ); document.write( "y=2x+1 \n" ); document.write( "y-2x = 1.............1 \n" ); document.write( "x+y = 10.............2 \n" ); document.write( ".. \n" ); document.write( "multiply equation 2 by 2 \n" ); document.write( "2x+2y=20 \n" ); document.write( "add this to equation 1 \n" ); document.write( "2x-2x+2y+y=21 \n" ); document.write( "3y=21 \n" ); document.write( "y = 7 \n" ); document.write( "x= 3 \n" ); document.write( "number = 37 \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |