Answer:
The formula 
Step-by-step explanation:
<em><u>Explanation</u></em>
Given W = x² - 2 y z
2 y z = x² + W
Dividing '2z' on both sides , we get

⇒ 
I don’t even know what this is if you give me the equation than I can help
First number is (n)
second number is (n - 4) --- first number diminished by 4
third number is (4n) --- 4 times the first number
Answer:
-3x+9
Step-by-step explanation:
Just add 4 and 5 together