Answer and Explanation
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<h2>-10</h2>
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<em>The answer is -10 because...</em>
<em>You need to multiply 2 by "x," and to find out what "x" is, we need to add...</em>

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<em>And if we add </em>
<em>by </em>
<em>, we get </em>
<em>, which is our answer.</em>
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<em>and now, if we add </em>
<em>by </em>
<em>, we get </em>
<em>, which is what the equation equals, and this is how we know it is correct.</em>
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<em>Hope this helps! :)</em>