document.write( "Question 580619: 3<1-2x<5 \n" ); document.write( "

Algebra.Com's Answer #371296 by Edwin McCravy(20055) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "        3 < 1 - 2x < 5\r\n" );
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document.write( "Subtract 1 from all three sides:\r\n" );
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document.write( "        3 < 1 - 2x < 5\r\n" );
document.write( "       -1  -1       -1\r\n" );
document.write( "       覧覧覧覧覧覧覧予r\n" );
document.write( "        2 < 0 - 2x < 4\r\n" );
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document.write( "or\r\n" );
document.write( "          2 < -2x < 4\r\n" );
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document.write( "Divide every term by -2, which reverses the inequality symbols:\r\n" );
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document.write( "          >  > \r\n" );
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document.write( "          -1 > x > -2\r\n" );
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document.write( "Using the fact that A > B > C is equivalent to C < B < A, we may\r\n" );
document.write( "write thst, if we prefer, as\r\n" );
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document.write( "          -2 < x < -1\r\n" );
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document.write( "That interval of x-values is represented by this graph:\r\n" );
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document.write( "   ---------o===o------------\r\n" );
document.write( "   -4  -3  -2  -1   0   1   2    \r\n" );
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document.write( "Or by this interval notation:\r\n" );
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document.write( "           (-2, -1)\r\n" );
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document.write( "Edwin

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