Answer:
A. The value of x is 5
B. The length of each side is 20!
Step-by-step explanation:
For part A., We can determine x by setting these equations to equal each other (as we know that all sides of a square are equal)! See below for how to:
[tex]4x = 2x +10\\2x = 10\\x=5[/tex]
For part B. sub x for 5 to get the side length of one side...
[tex]4(5) = 20\\2(5) +10=20[/tex]
We already know that all sides are equal, so the side length of each side is 20!
Hope I was of assistance! #SpreadTheLove <3
