Chapter 1 - Foundations for Algebra - 1-4 Properties of Real Numbers - Practice and Problem-Solving Exercises - Page 26: 12

The multiplication property of $-1$

The multiplication property of $-1$ states that the product of a real number and $-1$ is the negative of that number. This problem shows that when $-1$ is multiplied by $x$, it becomes $-x$, which is the negative of $x$.