Simple math

timer Asked: Feb 3rd, 2016

Question description

Hi, I have two science degrees yet saw smething on Facebook. From what I remember, in math, you do what is in () first, otherwise you go left to right.  I head of the PEMDAS (or "please excuse my dear aunt Sally" as a pneumonic device). Parentheses, exponents, multiplication, division, addition, subtraction...Is this true? Is the answer 12 or 18 to:

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