title: Append string with variable
body: <p>I'm a java guy coming over to Objective-C. In java, to add a variable to a string you'd have to do something along the lines of:</p>
  
  <pre><code>someString = "This string is equal to " + someNumber + ".";
  </code></pre>
  
  <p>I can't figure out how to do it in Objective-C though. I have an <code>NSMutableString</code> that I'd like to add to the middle of a string. How do I go about doing this?</p>
  
  <p>I've tried:</p>
  
  <pre><code>NSString *someText = @"Lorem ipsum " + someMutableString;
  NSString *someText = @"Lorem ipsum " + [someMutableString stringForm];
  </code></pre>
  
  <p>and a few other things, none of which seem to work. Also interchanged the <code>+</code>s with <code>,</code>s.</p>