d.

To solve the equation , simply add 17 to both sides. This gives you , which simplifies to . And there you have it, the magic number is 32!

Now, equations like this one are super handy in real life! Think about budgeting your expenses, figuring out distances, or even in cooking when you need to adjust a recipe. Mastering simple algebra helps you navigate these everyday challenges with ease, making you a math whiz in no time!