JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<span id="texto">33</span>

<div class="projeto" id="-9-3-21">aaa</div>
<div class="projeto" id="-3-1-77">bbb</div>
<div class="projeto" id="-5-33-1">ccc</div>
<div class="outra-classe" id="-5-33-1">ccc-2</div>
<div class="projeto" id="-9-23-11">ddd</div>
<div class="projeto" id="-1">eee</div>

JavaScript

$('#texto').on('click',function(){
  $('div[id*="' + $(this).text() + '"][class="projeto"]').fadeOut()
});