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    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><strong><span style="color: #993300">solve for x</span></strong></div></span>]]></writer>
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<div><strong><span style="color: #993300">so </span></strong></div></span>]]></writer>
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        <e type="operand">0.6667</e>
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    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><strong><span style="color: #993300">using solve2 funtion</span></strong></div></span>]]></writer>
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    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><strong><span style="color: #993300">could also</span></strong></div></span>]]></writer>
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        <e type="operand">0.6667</e>
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    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><strong><span style="color: #993300">but not </span></strong></div></span>]]></writer>
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    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><strong><span style="color: Red">No real roots error</span></strong></div></span>]]></writer>
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    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><strong><span style="color: #993300">Another way</span></strong></div></span>]]></writer>
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        <e type="operand">0.6667</e>
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    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><strong><span style="color: #993300">This also works</span></strong></div></span>]]></writer>
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    <math>
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    <math>
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        <e type="operand">0.6667</e>
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    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><strong><span style="color: Red">Matrix noninvertible determinant = 0</span></strong></div>
<div><strong><span style="color: Red">error</span></strong></div></span>]]></writer>
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    <math>
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        <e type="operand">0.6667</e>
        <e type="operand">1</e>
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    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><strong><span style="color: #993300">Polyroots will work though</span></strong></div></span>]]></writer>
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