document.write( "Question 583161: Solve and give answer in interval notation. (Show your work)
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Algebra.Com's Answer #372366 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "We solve for m in the middle.\r\n" );
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document.write( "We begin by adding 7 to all three sides:\r\n" );
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document.write( " 4 > -3m - 7 > 2\r\n" );
document.write( "+7       + 7  +7 \r\n" );
document.write( "----------------\r\n" );
document.write( "11 > -3m     > 9\r\n" );
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document.write( "Then we divide all three sides by -3.  But when (but only when) \r\n" );
document.write( "we divide through by a negatve number, we reverse the inequalities:\r\n" );
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document.write( "  <  < \r\n" );
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document.write( "   < m < -3\r\n" );
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document.write( "The graph would be:\r\n" );
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document.write( "------⚪=====⚫-----\r\n" );
document.write( "         -3     \r\n" );
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document.write( "And the interval notation for that is:\r\n" );
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document.write( "      (, -3] \r\n" );
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document.write( "Edwin

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