Final Answer: 
Steps/Reasons/Explanation:
Question: Solve for the given variable:  .
.
<u>Step 1</u>: Add  to both sides.
 to both sides.

<u>Step 2</u>: Simplify  to
 to  .
.

<u>Step 3</u>: Subtract  from both sides.
 from both sides.

<u>Step 4</u>: Simplify  to
 to  .
.

<u>Step 5</u>: Divide both sides by  .
.

<u>Step 6</u>: Simplify  to
 to  .
.

~I hope I helped you! :)~