Find the value of x.
i don't understand how to get the answer, can someone and give a simple explanation (i'm not to bright).

Step-by-step explanation:

we know that

The Midpoint Theorem states that the segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side.

so

In this problem

solve for x

Multiply by 2 both sides

subtract 2x both sides

Adds 1 both sides

(x, y)→(x − 8, y − 7)

step-by-step explanation:

enjoy!