Answer:
4
Step-by-step explanation:
Lets make 
be the ? in the equation.
That becomes ( x 3) - 3 = 15.
First you have to add 3 on both sides. After doing that it gets to ( x 3) = 15 - 3.
Then you simplify it to 3 = 12.
Now you divide 3 on both sides. That gets to = 4 after doing it.
Hope this helped! If not, please let me know! <3
It will be the same because my teacher told me you cant add something thats squared to something that isnt
True, because the sides of a square are usually 90 degrees, and when you add a diagonal it should split that in half.
Answer:
-2
Step-by-step explanation:
