d.

To solve the equation , start by isolating the term with . Add 4 to both sides, giving you . Next, divide both sides by 8 to find . So, is —easy as pie!

If you’re ever stuck with a linear equation, a common mistake is forgetting to perform the same operation on both sides. Just remember, whatever you do to one side, you must do to the other! Keeping this in mind will help you avoid those pesky errors and make algebra feel more like a game.