document.write( "Question 1208859: Solve the inequality. Express your answer using set notation and interval notation. Graph the solution set.\r
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\n" ); document.write( "\n" ); document.write( "(1/3) < [(x + 1)/2] <= (2/3)\r
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Algebra.Com's Answer #847352 by math_tutor2020(3817)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "\"1%2F3+%3C+%28x%2B1%29%2F2+%3C=+2%2F3\"\r
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\n" ); document.write( "\n" ); document.write( "\"2%2A%281%2F3%29+%3C+2%2A%28x%2B1%29%2F2+%3C=+2%2A%282%2F3%29\" Multiply all sides by 2\r
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\n" ); document.write( "\n" ); document.write( "\"2%2F3+%3C+x%2B1+%3C=+4%2F3\"\r
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\n" ); document.write( "\n" ); document.write( "\"2%2F3+-+1+%3C+x%2B1-1+%3C=+4%2F3+-+1\" Subtract 1 from all sides\r
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\n" ); document.write( "\n" ); document.write( "\"2%2F3+-+3%2F3+%3C+x+%3C=+4%2F3+-+3%2F3\"\r
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\n" ); document.write( "\n" ); document.write( "\"-1%2F3+%3C+x+%3C=+1%2F3\"\r
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\n" ); document.write( "\n" ); document.write( "The answer in set builder notation would be
\n" ); document.write( "That translates to \"x is any real number between -1/3 and 1/3; excluding -1/3 but including 1/3\".\r
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\n" ); document.write( "\n" ); document.write( "The interval notation would be (-1/3, 1/3]
\n" ); document.write( "A curved parenthesis means we exclude the endpoint -1/3.
\n" ); document.write( "A square bracket is there to include the endpoint 1/3.\r
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\n" ); document.write( "\n" ); document.write( "Here's the graph on a number line.
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\n" ); document.write( "Described in words: plot an open hole at -1/3 and a closed filled in circle at 1/3. Shade in between. \r
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\n" ); document.write( "\n" ); document.write( "Another way to express the diagram could be like this
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document.write( "              -1/3     1/3\r\n" );
document.write( "--|--------|-----O==|==●-----|--------|--\r\n" );
document.write( " -2       -1        0        1        2 \r\n" );
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