document.write( "Question 514668: When the sum of a number and 9 and is doubled, the result is -8. What is the number? \n" ); document.write( "
Algebra.Com's Answer #343511 by umail08(87)![]() ![]() You can put this solution on YOUR website! Let x = the number \n" ); document.write( "X + 9 -=sum of a number and 9 \n" ); document.write( "2(x+9) = double the sum of a number and 9 \n" ); document.write( "2(x + 9) = -8 … this is your equation to solve \n" ); document.write( "2(x + 9) = -8 \n" ); document.write( "2x + 18 = -8 \n" ); document.write( "2x + 18 – 18 = -8 -18 \n" ); document.write( "2x = -26 \n" ); document.write( "2x/2 = -26/2 \n" ); document.write( "x = -13 \n" ); document.write( " \n" ); document.write( " |