Final Answer:
![3w](https://img.qammunity.org/2022/formulas/mathematics/high-school/l8yd4jge98qv2p88urj0l5xcaaactdd1ui.png)
Steps/Reasons/Explanation:
It is common addition and subtraction because they all have w after the number. This means they are the same variable. A plus minus (+-) would be a minus (-).
Question: Simplify the expression:
.
Step 1: Simplify.
![-9w - 6w + 10w + 8w](https://img.qammunity.org/2022/formulas/mathematics/high-school/uadyhucgi8emd9ade80pdf97ohwxg7f4zs.png)
Step 2: Simplify.
![3w](https://img.qammunity.org/2022/formulas/mathematics/high-school/l8yd4jge98qv2p88urj0l5xcaaactdd1ui.png)
~I hope I helped you :)~