Answer:
a - 8/2
Step-by-step explanation:
i hope this help;-)
[tex]\frac{1}{2} (a - 8)[/tex]
[tex]\frac{1}{2} (a - 8)[/tex] = [tex]\frac{1}{2}a - 4[/tex]
they are equal because 8 divided by 2 is 4 so you still get [tex]\frac{1}{2}a - 4[/tex]