document.write( "Question 272540: the sum of three times a number and 7 more than the number is the same as the difference between -11 and twice the number help solve... \n" ); document.write( "
Algebra.Com's Answer #199343 by oberobic(2304) ![]() You can put this solution on YOUR website! x = the number \n" ); document.write( "3x = three times the number \n" ); document.write( "x+7 = 7 more than the number \n" ); document.write( "2x - (-11) = twice the number minus -11 (if that is what you mean?) \n" ); document.write( ". \n" ); document.write( "3x + x+7 = 2x - (-11) = 2x+11 \n" ); document.write( "4x + 7 = 2x + 11 \n" ); document.write( "2x = 4 \n" ); document.write( "x = 2 \n" ); document.write( ". \n" ); document.write( "Checking... \n" ); document.write( "3x + x+7 = 3(2) + 2+7 = 6+9 = 15 \n" ); document.write( "2x + 11 = 2(2) + 11 = 15 \n" ); document.write( ". \n" ); document.write( "So, the number is 2. \n" ); document.write( " |