Finding the double value of -7.5

To find the double value of -7.5, start by understanding that doubling a number means multiplying it by 2. Here, -7.5 stands for the initial number you want to double. The process involves taking this number and multiplying it by 2 to get a new value. The calculation is represented by (-7.5 * 2), which means you multiply -7.5 by 2. This operation yields -15, which is exactly twice the size of the original -7.5. This formula can be applied to any number -7.5 to quickly find its double, making it a valuable and straightforward arithmetic skill.