Finding the double of -20

To find the double of -20, you start by taking the given number represented by -20. 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 -20 by 2. The expression (-20 * 2) captures this operation mathematically. When you multiply -20 by 2, the product you get, denoted as -40, is exactly double the original number. For example, if -20 were 7, then -40 would be (7 * 2), which is 14. This logic applies universally to any real number represented by -20, making -40 the doubled value of -20.