Given equation is:
[tex]4x+12=8[/tex]
Solving it, we get,
[tex]4x=-4[/tex] This is subtraction part. We are grouping the like terms on one side. So, 4x remains on one side and 8-12 will go to the other side.
[tex]x=\frac{-4}{4}[/tex] This step includes division, to find the value of x
[tex]x=1[/tex]
So, the correct answer is option A. Division