The best way is to get all of your variables on one side, and all of the numbers on the other.

So we have:

x + 6 = -x -2, lets start by bringing all of the x's to one side (i.e to the left)

x + 6 - (-X) = -2,  which simplifies to 2x + 6 = -2.

Next, lets get all the other numbers on the other side.

2x = -2 - 6, which simplifies to 2x = -8...

Final step, divide both sides by 2...and we have x = -4 as your final answer.

Hope that helps.

x+6=-x-2,u the like terms rule where uknowns wil be on one side of the rquation and the knowns the other,that is x+x=-6-2 note that when -x moves to the left the sign changes to + hence +x 2x=-8 divide both sides by 2, 2x/2=-8/2, x=-4.