Help me with number 4 plzzzzzz

Answer: x=8
Step-by-step explanation:
To solve for x, we want to use our algebraic properties to isolate x.
[tex]-\frac{1}{2}x-7=-11[/tex] [add both sides by 7]
[tex]-\frac{1}{2}x=-4[/tex] [multiply both sides by -2]
[tex]x=8[/tex]
Now, we know that x=8.