So to rewrite it so that we can find the side, we just need to isolate the a variable.

So firstly, divide by 6 on both sides of the equation: 
Next, square root each side, and your answer should be 
Step-by-step explanation:
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Answer:
It is A. |7| > |-7| , so what you were thinking is correct!
Hope this helped! <em>(also, if I am wrong, I am sorry-) </em>
Have a good day!
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