2 answers:
<u><em>These are the steps:</em></u>
|3x|=3x Convert the 3x to positive
x=6 Divide 3 to both sides
<u><em>Answer</em></u>: x=6
We can get two different equations from this:
3x = 18
and
3x = -18
So:
x = 6, x = -6
x = {6, -6}
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Step-by-step explanation:
C is the correct answer to your question