Select the additive inverse of 51

The additive inverse of a number is a number when added to the original number equals to 0.

What can we add to 51 to make it equal to 0. Set up an equation.

Let x = the additive inverse of 51

x + 51 = 0

Solve for x.

x + 51 = 0

x = - 51 < - - Subtract 51 from both sides

So, - 51 is the additive inverse of 51.

-51 because it makes zero