Write an equation for the model.
PLEASE I NEED HELP AND NO ROBOTS

Answer:
[tex]x[/tex]=7.5
Step-by-step explanation:
There are 15 ones so you have to add all of them up to get 15.
Then there are two [tex]x[/tex]'s to you have to add them to get [tex]2x\\[/tex].
15-2[tex]x[/tex]
Lastly, divide both sides by 15 to get [tex]x[/tex]=7.5
Hope this helps!