But I'm fairly certain that doesn't apply here.
From what I know, you just do the math. I bet the OP tried to write fancier than he meant it to be.
English
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I don't know. I saw the 2 next to the parenthesis and thought about distributive property
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Hmm.. I guess we won't know until I learn that in 9th grade math. Two more tears to go. ¯\_(ツ)_/¯
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Wait, what math are you taking?