Answer:
Here you go
Step-by-step explanation:
the diagram shows that 4x + 12x is equal to 320 so that is what I put for the first box. Then, you simplify 4x and 12x by adding them to get 16x. and lastly you divide the 320 by 16 which then makes x equal to 20.
I put the picture in case you are a visual learner because for me I learn from visuals better than words :)
