I suppose you want to solve the following equation for b:

First of all, you need to divide both sides by 9:

Then, subtract 2 from both sides:

I think a is the answer im not sure
Answer:
The answer is
<h2>( - 3 , - 9)</h2>
Step-by-step explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula

where
(x1 , y1) and (x2 , y2) are the points
From the question
N(10, −14) and P(−16, −4)
The midpoint is

We have the final answer as
<h3>( - 3 , - 9)</h3>
Hope this helps you