Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
You would start by writing it out again then simplifying.
[tex]\sqrt{8}a-5-\sqrt{6}a+8=0\\.378937a+3=0[/tex]
Now let's subtract 3 from both sides...
[tex].378937a=-3[/tex]
Now we'll divide the sides by .378937....
[tex]a=-7.916883[/tex]
So a equals -7.916883
