document.write( "Question 910255: if four is added to a certain number, the result will be the same if twice the number is subtracted to 31. what is the number? \n" ); document.write( "
Algebra.Com's Answer #552333 by Lenzky(18)![]() ![]() ![]() You can put this solution on YOUR website! Let x be the number. \n" ); document.write( "x+4 = 31-2x \n" ); document.write( "combine similar terms \n" ); document.write( "x+2x = 31-4 \n" ); document.write( "3x = 27 divide both side by 3 to get the value of x \n" ); document.write( "x = 9\r \n" ); document.write( "\n" ); document.write( "CHECKING: \n" ); document.write( "9+4 = 31-(2)(9) \n" ); document.write( "13 = 31-18 \n" ); document.write( "13 = 13 \n" ); document.write( " |