Simplify the following expression: 2x − 2y + 5z − 2x − y + 3z

2x-2y+5z-2x-y+3z

2x-2x= 0 (cancel each other out0

-2y-y= -y (a variable always has a 1 in front of it, so just put a negative there) 

5z+3z= 8z

Combine those together.

8z-y 

I hope this helps!
~kaikers

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .