How do you write $g: x - 12 - 2x$ in function notation?

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Answer 1 · 2015-06-04T12:39:19

(I'm doing some assuming of what your notation means and also that you intended: $g:x rarr 12-2x$ )

In function notation this would be:
$color(white)("XXXX")$ $g(x) = 12 -2x$

How do you write g: x - 12 - 2xg: x - 12 - 2x in function notation?