Question

Can some one please help and explain this to me

Answer 1

7x+5x+7x+9=180

19x=180-9

171/19=9

x=9

Explanation:

Answer 2

so bassicaly. see the x in all the factors u need to find what the value of x is.

or the arrows connect the x and a certain point in the shape. X = the digree or area of the point.

most likely the digree in the shape.