Answer:

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Step-by-step explanation:
The terms of
are
and

Divide each term by -1/2 to factor out the -1/2
If we divide
over -1/2, then we'll get x. Basically the -1/2 terms cancel.
If we divide 6 over -1/2, we get -12. It might help to think of it as 6/(-0.5) = -12.
So overall we have

You can use the distribution property to check the answer.