Finding the double of -18

To find the double of -18, you start by taking the given number represented by -18. Doubling means you want to find a number twice as big, so the natural operation to perform is multiplication by 2. This is why the calculation involves multiplying -18 by 2. The expression (-18 * 2) captures this operation mathematically. When you multiply -18 by 2, the product you get, denoted as -36, is exactly double the original number. For example, if -18 were 7, then -36 would be (7 * 2), which is 14. This logic applies universally to any real number represented by -18, making -36 the doubled value of -18.