Solve (-6)+(-7)+13: Evaluating the Sum to Zero

Let's solve the equation:

$(-6)+(-7)+13=$

We'll locate minus 6 on the number line and move 7 steps to the left (since minus 7 is less than zero):

We've reached the number minus 13.

Now we'll move 13 steps to the right (since 13 is greater than zero):

We've reached the number 0.

Therefore, the solution to the equation is:

$(-6)+(-7)+13=0$

So the appropriate sign will be:

$0=0$