Answer:
36x-3y+4z^2+26-7x^2
Step-by-step explanation:
Okay well for starters, you can't subtract that because it's an expression, not an equation. And secondly, there was '?' which I'm going to assue=me was a typing error.
Now to actually simplify this mess of an expression, you just need to combine the like-terms! Once you do that you really can't do anything else, since you don't know the varibles.
Answer:
Midpoint is
Step-by-step explanation:
A line segment refers to line that has two endpoints.
Let
be the endpoints of a line segment.
Midpoint of the line segment is given by 
Take the given points as follows:

Midpoint of a line segment 

Answer:which z sqore are u talking about
Step-by-step explanation:
Answer:
which grade do you want to get helped by ?