Which property of real numbers is illustrated by the equation?

9514 1404 393

  additive inverse

Step-by-step explanation:

The equation shows that the sum of a number and its additive inverse is zero. This is the additive inverse property.

Additional comments

This property is used, together with the identity property of addition, to solve equations by making terms disappear where you don't want them.

Example:

  x + 1 = 3

We would like to remove the +1 in order to find the value of x. Using the additive inverse property, we add the additive inverse of +1 to both sides of the equation.

  x +1 -1 = 3 -1

The additive inverse property tells us the sum of +1 and -1 is zero, so this becomes ...

  x +0 = 2

The additive identity property tells us the sum of x and 0 is simply x, so ...

  x = 2

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i got 10.28 but that rounds up to 10.3