diff --git a/book/content/Exercises/02_python/03_variablen/variablen.ipynb b/book/content/Exercises/02_python/03_variablen/variablen.ipynb
index af3d19d9..3c85df33 100644
--- a/book/content/Exercises/02_python/03_variablen/variablen.ipynb
+++ b/book/content/Exercises/02_python/03_variablen/variablen.ipynb
@@ -1,6 +1,7 @@
 {
  "cells": [
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {
     "tags": [
@@ -24,6 +25,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -31,6 +33,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -38,13 +41,55 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Aufgabenteil A"
+    "## Aufgabenteil A\n",
+    "Erstellen Sie zwei Variablen und weisen sie ihnen einen Wert zu. Lassen Sie die Werte ausgeben und tauschen Sie danach die Werte der Variablen. Geben Sie erneut die Werte aus."
    ]
   },
   {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Lösungsvorschlag"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": [
+     "loesung",
+     "hide-cell"
+    ]
+   },
+   "outputs": [],
+   "source": [
+    "a = 7\n",
+    "b = 3\n",
+    "\n",
+    "print(\"Der Wert von a ist\", a, \"und der Wert von b ist\", b)\n",
+    "\n",
+    "temp = a\n",
+    "a = b\n",
+    "b = temp\n",
+    "\n",
+    "print(\"Der Wert von a ist\", a, \"und der Wert von b ist\", b)"
+   ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Aufgabenteil B"
+   ]
+  },
+  {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -58,6 +103,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {
     "tags": [
@@ -118,13 +164,15 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Aufgabenteil B"
+    "## Aufgabenteil C"
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -146,6 +194,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {
     "tags": [