document.write( "Question 182525: Q. (((One number is 1 more than another doubled. If their difference is 10, find the number (use algebra))). \n" ); document.write( "
Algebra.Com's Answer #137040 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! Let x = \"one number\" \n" ); document.write( "Let y = \"another number\" \n" ); document.write( ": \n" ); document.write( "\"One number is 1 more than another doubled.\" \n" ); document.write( "x = 2y + 1 \n" ); document.write( ": \n" ); document.write( " If their difference is 10, find the number \n" ); document.write( "x - y = 10 \n" ); document.write( ": \n" ); document.write( "Substitute (2y+1) for x in the above equation, find y \n" ); document.write( "2y + 1 - y = 10 \n" ); document.write( "2y - y = 10 - 1 \n" ); document.write( "y = 9 \n" ); document.write( ": \n" ); document.write( "x = 2y + 1 \n" ); document.write( "x = 2(9) +1 \n" ); document.write( "x = 19 is \"the number\" \n" ); document.write( "; \n" ); document.write( "; \n" ); document.write( "Check solution in the statement: \n" ); document.write( "\"One number is 1 more than another doubled\" \n" ); document.write( "19 = 2(2) + 1 \n" ); document.write( " \n" ); document.write( " |