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evaluating_expressions_1.html
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evaluating_expressions_1.html
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<!DOCTYPE html>
<html data-require="math">
<head>
<title>Evaluating expressions 1</title>
<script src="../khan-exercise.js"></script>
</head>
<body>
<div class="exercise">
<div class="vars">
<var id="X">randRange( 1, 10 )</var>
<var id="COEFF">randRangeNonZero( -1, 1 ) * randRange( 3, 10 )</var>
<var id="CONSTANT">randRangeNonZero( -1, 1 ) * randRange( 3, 10 )</var>
<var id="SOLUTION">(X * COEFF) + CONSTANT</var>
</div>
<div class="problems">
<div>
<p class="problem">Evaluate the following expressions when <code>x = <var>X</var></code></p>
<p class="question"><code><var>COEFF</var>x + <var>CONSTANT</var></code></p>
<p class="solution"><var>SOLUTION</var></p>
</div>
</div>
<div class="hints">
<div>
<p>Plug in <code class="hint_orange"><var>X</var></code> for <code>x</code>.</p>
<p><code>= (<var>COEFF</var>) \cdot </code> <code class="hint_orange">(<var>X</var>)</code> <code> + <var>CONSTANT</var></code></p>
</div>
<p><code>= </code> <code class="hint_orange"><var>COEFF * X</var></code> <code> + <var>CONSTANT</var></code></p>
<p><code>= <var>SOLUTION</var></code></p>
</div>
</div>
</body>
</html>