5. "Twenty-seven less than twice a number is -1. ."

To solve the equation described, we can represent the unknown number as \( x \). The phrase "twenty-seven less than twice a number" translates to \( 2x - 27 = -1 \). If we add 27 to both sides, we get \( 2x = 26 \). Dividing both sides by 2, we find \( x = 13 \). Suddenly, solving equations feels like cracking a secret code, doesn't it? Now, once you get the hang of solving equations like these, you can apply similar strategies to real-life situations. For instance, if you want to figure out how much money you'll need after buying groceries, you can set up an equation based on your budget. This not only boosts your math skills but makes budgeting a lot more fun and interactive!