Answer:
Step-by-step explanation:
Given that:
To evaluate the expression, we must simply substitute the given value of , which is
, for
:
Multiply:
Subtract:
-
To check your work, simply set the given expression equal to our solution, :
Add to both sides of the equation:
Divide both sides of the equation by the coefficient of , which is
:
Since it matches the given value of , our solution is correct!