document.write( "Question 71899: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. Find the larger number. \n" ); document.write( "
Algebra.Com's Answer #51371 by psbhowmick(878)![]() ![]() You can put this solution on YOUR website! Let the first number = x. \n" ); document.write( "Then the other number = 12 more than 'x' = (x+12).\r \n" ); document.write( "\n" ); document.write( "Clearly, 'x' is the smaller number and (x+12) is the larger. \n" ); document.write( "So the sum of the smaller number and twice the larger number = x + 2(x + 12) = 39 \n" ); document.write( "i.e. x + 2(x + 12) = 39 \n" ); document.write( "x + 2x + 2*12 = 39 \n" ); document.write( "3x + 24 = 39 \n" ); document.write( "3x = 39 - 24 \n" ); document.write( "3x = 15 \n" ); document.write( "x = 15/3 \n" ); document.write( "x = 5\r \n" ); document.write( "\n" ); document.write( "So the smaller number = x = 5 and the larger number = (x + 12) = 5 + 12 = 17\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Answer: 17 \n" ); document.write( " |