document.write( "Question 972800: Please Solve the inequality 7x-9>=x+3
\n" ); document.write( "where 7x-9 is an absolute value and in bars and it is greater then equals to x+3
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Algebra.Com's Answer #595138 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
\"abs%287x-9%29%3E=abs%28x%2B3%29\"\r
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\n" ); document.write( "\n" ); document.write( "To be easy, either the signs of each argument are same or they are opposite. Examining the simple cases would be better for understanding, but avoiding here.\r
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\n" ); document.write( "\n" ); document.write( "You want both of these to be true for a solution.
\n" ); document.write( "\"7x-9%3E=x%2B3\" AND \"7x-9%3E=-x-3\"\r
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\n" ); document.write( "\n" ); document.write( "-
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\n" ); document.write( "\"6x-12%3E=0\"
\n" ); document.write( "\"x-2%3E=0\"
\n" ); document.write( "\"x%3E=2\"\r
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\n" ); document.write( "\n" ); document.write( "\"8x-6%3E=0\"
\n" ); document.write( "\"8x%3E=6\"
\n" ); document.write( "\"4x%3E=3\"
\n" ); document.write( "\"x%3E=3%2F4\"\r
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\n" ); document.write( "\n" ); document.write( "The first condition makes \"x%3E=2\"; and the second condition makes \"x%3E=3%2F4\". We can check intervals around the critical x values just to be more certain.\r
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\n" ); document.write( "\n" ); document.write( "Between the two:
\n" ); document.write( "\"abs%287x-9%29%3E=abs%28x%2B3%29\"
\n" ); document.write( "pick 1.
\n" ); document.write( "\"abs%287%2A1-9%29%3E=abs%281%2B3%29\"
\n" ); document.write( "\"abs%28-2%29%3E=abs%284%29\"
\n" ); document.write( "\"2%3E=4\", FALSE.\r
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\n" ); document.write( "\n" ); document.write( "Left of 3/4:
\n" ); document.write( "pick 0.
\n" ); document.write( "\"abs%287%2A0-9%29%3E=abs%280%2B3%29\"
\n" ); document.write( "\"abs%28-9%29%3E=abs%283%29\"
\n" ); document.write( "\"9%3E=3\", TRUE.\r
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\n" ); document.write( "\n" ); document.write( "Greater than 2:
\n" ); document.write( "pick 3.
\n" ); document.write( "\"abs%287%2A3-9%29%3E=abs%283%2B3%29\"
\n" ); document.write( "\"12%3E=6\", TRUE.\r
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\n" ); document.write( "\n" ); document.write( "Actual answer is \"highlight%28x%3E=3%2F4%29\".
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