document.write( "Question 269235: Write inequality, solve problem, check solution. \r
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document.write( "three times the sum of a number and seven is greater than five times the number minus 13
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document.write( "3(x)+7>5(x)-13 (is this right) How do I solve? \n" );
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Algebra.Com's Answer #197316 by dabanfield(803)![]() ![]() ![]() You can put this solution on YOUR website! Write inequality, solve problem, check solution. \n" ); document.write( "three times the sum of a number and seven is greater than five times the number minus 13 \n" ); document.write( "3(x)+7>5(x)-13 (is this right) How do I solve?\r \n" ); document.write( "\n" ); document.write( "Not quite right :)\r \n" ); document.write( "\n" ); document.write( "3(x+7) > 5x - 13\r \n" ); document.write( "\n" ); document.write( "Expanding we have:\r \n" ); document.write( "\n" ); document.write( "3x + 21 > 5x - 13\r \n" ); document.write( "\n" ); document.write( "Substract 3x from both sides:\r \n" ); document.write( "\n" ); document.write( "3x - 3x + 21 > 5x - 3x - 13\r \n" ); document.write( "\n" ); document.write( "21 > 2x - 13\r \n" ); document.write( "\n" ); document.write( "Add 13 to both sides:\r \n" ); document.write( "\n" ); document.write( "21 + 13 > 2x - 13 + 13\r \n" ); document.write( "\n" ); document.write( "34 > 2x\r \n" ); document.write( "\n" ); document.write( "Divide both sides by 2:\r \n" ); document.write( "\n" ); document.write( "34/2 > x \r \n" ); document.write( "\n" ); document.write( "x < 17 \n" ); document.write( " |