Answer:
-2x + 1
Step-by-step explanation:
3 + 7x - (2 + 9x)
Distribute the negative:
3 + 7x - 2 - 9x
Combine like terms:
-2x + 1
Answer— 45/15=3 so there is 3 classes with 15 students in each class? I didn’t really understand your question but I tried!
Hope it helped!
The values go up by 2. So your answer would be 20.
<h2>
Answer: 
</h2>
Step-by-step explanation:
- Cross-multiply.
- Divide both sides by 9.