Solve: (-3) + (-4) + (-7) ? -15 - Finding the Missing Operation

Let's solve the equation:

$(-3)+(-4)+(-7)=$

We'll locate minus 3 on the number line and move four steps to the left (since minus 4 is less than zero):

We've reached the number minus 7.

Now let's move seven steps to the left (since minus 7 is less than zero):

We've reached the number minus 13.

Therefore, the solution to the equation is:

$(-3)+(-4)+(-7)=-14$

So the appropriate sign will be:

-14>-15