Answer: -8
Step-by-step explanation:
1. Combine like terms.
-x - 3 = (x - 3x ) + ( 5 - 16)
2. Simplify.
-x - 3 = -2x - 11
3. To balance the equation, add 2x on both sides.
-x - 3 + 2x = -2x - 11 + 2x
4.
x - 3 = - 11
Solve for x, which gives you -8.
