Answer:
x = 15
Explanation:
1. Combine like terms
2x - 3x = -x
2. Rewrite original equation
-x + 4 = -11
3. Subtract four from both sides of the equation.
-x + 4 = -11
- 4 - 4
-x = - 15
4. Divide by -1 on both sides to get rid of the negative signs:
x = 15