Simplify the expression: -4 + (-7)

The expression shown in the image is the sum of a negative number and another negative number.

$$-4 + (-7)$$

Adding a negative number is the same as subtracting its positive counterpart.

$$-4 - 7$$

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

$$4 + 7 = 11$$

So,

$$-4 - 7 = -11$$

The final answer is $-11$.