Answer: 9
Explanation:
To solve this problem you must apply the proccedure shown below:
Keeping on mind that:
(-)(-)=+
(+)(+)=+
(-)(+)=-
You can distribute the signs as following:
![-6+11-4+8](https://img.qammunity.org/2020/formulas/mathematics/middle-school/k3t36td3dkqvmc07zxd6hauyfg1tns4tkx.png)
Now, you can add all the numbers shown above. Therefore, you obtain the following sum:
![=9](https://img.qammunity.org/2020/formulas/mathematics/middle-school/tnwv3xaj548geecp8oufxmgwtxfvoocseg.png)