document.write( "Question 1051072: Please help I need to define a variable, write an inequality and solve each problem. My question is Two times the sum of a number and four is no more than three times the sum of the number and seven decreased by four.
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Algebra.Com's Answer #666667 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! the number is x \n" ); document.write( "2(x+4) is less than or equal to 3(x+7)-4. That says twice the sum of a number added to 4 is less than or equal to (not more than) thrice the sum of a number and seven decreased by four. \n" ); document.write( "2x+8 <= 3x+21-4 \n" ); document.write( "2x+8 <= 3x+17 \n" ); document.write( "-x <= 9 \n" ); document.write( "x> = -9 ANSWER \n" ); document.write( "Change the inequality when you multiply or divide by a negative number \n" ); document.write( "try -10 should not work \n" ); document.write( "(-6)2 is less than or equal to 3(-10+7)-4 \n" ); document.write( "-12 is less than -13. No, it does not work \n" ); document.write( "---------------------------------------- \n" ); document.write( "-5 should work \n" ); document.write( "2(-1) is less than 2(2)-4 \n" ); document.write( "-2 is less than 0. Yes, it works. \n" ); document.write( " |