🔒 Preview mode. The first 15 Foundations lessons are free; this one is Pro. Start a 7-day trial to unlock the editor, AI hints and the rest of the curriculum. Card required, cancel any time in Dashboard.Start 7-day trial →
📝 **Task:** Predict the output of the f-string.
```python
x = 5
y=10
print(f"{x} + {y} = {x + y}")
```
📋 Enter the summary line.
💡 **Hint:** you can insert any expressions into `{...}`, not just variables.