Question 235619
For this problem:

{{{-(x+4)=-8}}}

First you would multiply the negative sign into the parenthesis:

{{{-x-4=-8}}}

Next, you want to get x by itself, so you would add the four to the right side of the equation:

{{{-x=-8+4}}}

{{{-x=-4}}}

When you have a negative variable, divide by a negative 1 (the variable is considered 1) to make the variable positive:

{{{-x/-1=-4/-1}}}

{{{x=4}}}