Write an expression for the difference between 10 and x

You are assembling pieces of an iron gate to complete a fence. the finished gate will look like the one below. in order to assemble the gate it is important to under how the pieces are related. part 1: how are pies 1 and 2 in the archway related? part 2: how are the rectangular sections 5 and 6 in the center of the gate related to each other?

Can somebody me out with this question

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)