Help me figure this out

Hello there!
Solve y.
The answer should be the third option C.
First add -4x from both sides.
[tex]4x-2y+-4x=12+-4x[/tex]
[tex]-2y=-4x+12[/tex]
Then divide by -2 from both sides.
[tex]\frac{-2y}{-2} =\frac{-4x+12}{-2}[/tex]
Simplify should be the correct answer.
[tex]y=2x-6[/tex]
Hope this helps!
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-Charlie