Maintain the value of the variable when opening a modal

I have a table in which to each row I pass some variables through a foreach.

And when I give 'Delete' a modal opens, that has the first value of the table, it does not matter if I click on the delete button of the row with ID 5, that I will get the value of ID 1 .

The code is this:

<tbody>
     @foreach ($admins as $key => $admin)
      <tr>
        <td class="idadmin tdcenter"><p id="margindata" class="tdmenuadmin">{{$admin->id}}</p></td>
        <td class="nameadmin"><p id="margindata" class="tdmenuadmin">{{$admin->name}}</p></td>
        <td class="emailadmin"><p id="margindata" class="tdmenuadmin">{{$admin->email}}</p></td>
        <td class="actionsadmin tdmenuadmin">

         <button type="button" class="btn btn-danger btn-sm deletemenuadmin" data-toggle="modal" data-target="#formdeleteadmin" id="margindata">Delete</button>

         <div id="formdeleteadmin" class="modal fade" role="dialog"> <!-- DIV TO SHOW THE CREATE PROJECT FORM 1 START HERE-->

         <div class="modal-dialog" style="background-color:#23517F;">

         <div class="modal-content" style="background-color:#23517F;">

            <div class="modal-header">

            <button type="button" class="close" data-dismiss="modal">&times;</button>

            <h4 class="modal-title" style="color:black;">{{$admin->id}}¿Estas seguro de borrar al administrador?</h4>

            </div>

            <div class="modal-body">

                <div class="col-sm-6">
                            <a href="{{ route('admin.admins') }}" class="btn btn-danger btn-block">No</a>
                </div>
                <div class="col-sm-6">
                    <form method="POST" action="{{route('admin.admins.destroy',$admin->id)}}">
                        <input type="submit" value="Si" class="btn btn-danger btn-block">
                        <input type="hidden" name="_token" value="{{Session::token()}}">
                        {{method_field('DELETE')}}
                    </form>
                </div>
            </div>

            <div class="modal-footer">

                    <button type="button" class="btn btn-default" data-dismiss="modal" id="closemodal">Close</button>

            </div>

         </div>

       </div>

     </div>
        </td>
      </tr>
    @endforeach
</tbody>

When I give the Delete it shows me this modal: (it's clipped)

And if I give to if it goes to the route that indicates the code and executes the function of the controller, the function is this:

 public function destroyAdmin($id) //Eliminar la informacion de un admin
    {
        $admin = Admin::find($id);
        $admin->delete();
        Session::flash('success','El admin ha sido eliminado con éxito.');
        return redirect()->route('admin.admins');
    } 

How can I open the modal when I open the ID of the row?