document.write( "Question 110602: solve and graph the solution set.
\n" ); document.write( "3(x-4)>7x-9
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Algebra.Com's Answer #80794 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"3%28x-4%29%3E7x-9\" Start with the given inequality\r
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\n" ); document.write( "\n" ); document.write( "\"3x-12%3E7x-9\" Distribute\r
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\n" ); document.write( "\n" ); document.write( "\"3x%3E7x-9%2B12\"Add 12 to both sides\r
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\n" ); document.write( "\n" ); document.write( "\"3x-7x%3E-9%2B12\" Subtract 7x from both sides\r
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\n" ); document.write( "\n" ); document.write( "\"-4x%3E-9%2B12\" Combine like terms on the left side\r
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\n" ); document.write( "\n" ); document.write( "\"-4x%3E3\" Combine like terms on the right side\r
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\n" ); document.write( "\n" ); document.write( "\"x%3C%283%29%2F%28-4%29\" Divide both sides by -4 to isolate x (note: Remember, dividing both sides by a negative number flips the inequality sign) \r
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\n" ); document.write( "\n" ); document.write( "\"x%3C-3%2F4\" Reduce\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
\n" ); document.write( "\n" ); document.write( "So our answer is \"x%3C-3%2F4\" (which is approximately \"x%3C-0.75\" in decimal form)\r
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\n" ); document.write( "\n" ); document.write( "Now let's graph the solution set\r
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\n" ); document.write( "\n" ); document.write( "Start with the given inequality:\r
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\n" ); document.write( "\n" ); document.write( "\"x%3C-3%2F4\"\r
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\n" ); document.write( "\n" ); document.write( "Set up a number line:\r
\n" ); document.write( "\n" ); document.write( "\"number_line%28500%2C-13%2C7%29\" \r
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\n" ); document.write( "\n" ); document.write( "Now plot the point \"x=-3%2F4\" on the number line\r
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\n" ); document.write( "\n" ); document.write( "\"number_line%28500%2C-13%2C7%2C+-3%2F4%29\"\r
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\n" ); document.write( "\n" ); document.write( "Now pick any test point you want, I'm going to choose x=0, and test the inequality \"x%3C-3%2F4\"\r
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\n" ); document.write( "\n" ); document.write( "\"0%3C-3%2F4\" Plug in \"x=0\"\r
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\n" ); document.write( "\n" ); document.write( "Since this inequality is not true, we simply shade the entire portion that does not contain the point x=0 using the point \"x=-3%2F4\" as the boundary. This means we shade everything to the left of the point \"x=-3%2F4\" like this:\r
\n" ); document.write( "\n" ); document.write( " Graph of \"x%3C-3%2F4\" with the shaded region in blue\r
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\n" ); document.write( "\n" ); document.write( "note: at the point \"x=-3%2F4\", there is an open circle. This means the point \"x=-3%2F4\" is excluded from the solution set.\r
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