−2(x+2)−x−3=8

Sure, let's solve the equation step by step:

1. Distribute the -2 in the term -2(x+2). This gives us -2x - 4.
2. So, the equation now reads -2x - 4 - x - 3 = 8.
3. Combine like terms on the left side of the equation to simplify. This gives us -3x - 7 = 8.
4. Add 7 to both sides of the equation to isolate the term with x. This gives us -3x = 15.
5. Finally, divide both sides of the equation by -3 to solve for x. This gives us x = -5.