Question

Help plzzzz ill give extra points

Answer 1

12x

16x, 320

20

Explanation:

Hope this helps

Answer 2

Solution :-

Total equation ,

`\displaystyle\sf\to 4x+\boxed{\sf 12}x=\boxed{\sf 320}`

`\displaystyle\sf\to \boxed{\sf 16}x=\boxed{\sf 320}`

`\displaystyle\sf\to x =\boxed{\sf 20}`