Answer:
7.51 hope this helps
Step-by-step explanation:
The value after differentiate will be;
⇒ 
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The function is,
⇒ 
Now,
Differentiate the function with respect to x as;
The function is,
⇒ 
⇒ 
⇒ 
⇒ 
Thus, The value after differentiate will be;
⇒ 
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Step-by-step explanation:
y + 1 = -(x+5)
y + 1 = -x - 5
y = -x - 6
x + y = -6