Simplify the expression: (-7) - (+7)

The expression shown in the image is a subtraction problem involving signed numbers.

$$(-7) - (+7)$$

Subtracting a positive number is the same as adding a negative number. So, $-(+7)$ becomes $-7$.

$$(-7) - 7$$

When subtracting a positive number from a negative number, you add their absolute values and keep the negative sign.

$$7 + 7 = 14$$

So,

$$-7 - 7 = -14$$

The final answer is $-14$.