title: Find item from the list
body: <p><code>equipment</code> has three items, and <code>carspecification</code> is a list item. In the <code>carspecification</code>, there is an <code>equipmentId</code> property. </p>
  
  <p>How could I able to find equipment item(s) to find only equipment matches with <code>equipmentId</code> in <code>carspecification</code>.</p>
  
  <pre><code> var equipment = _carService.GetCarEquipment(carId);
   var carSpecification = _carSpecificationService.GetId(specificationId);
  </code></pre>
  
  <p>I have tried the following, but it does not work.</p>
  
  <pre><code> var eq = equipment.Select(x =&gt; x.Id.Equals(carSpecification.Select(y=&gt; y.EquipmentId)));
  </code></pre>