Answer:
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Given:

Explanation:
In this problem, we need to simplify the answer which means we need to make the equation more understandable. This equation has both constant and variable. The constant are the parameters whose values doesn't change (numbers). The variables are the parameters whose values changes according to the set of given conditions.
Now, in the equation, we need to solve the parentheses,

Now, on adding the variables,

The above formed in the simplified form of the given equation.