Answer:
50-50
Step-by-step explanation:
its the universal law
Answer:
The simplified form of
is 
Step-by-step explanation:
Given : 
We have to write the simplified form of 
Consider the given expression 
We know 
and 
Thus,

Simplify, we have,

Thus, The simplified form of
is 
It's called a rectangle. This is just a definition, so there is not much to explain.
Answer:
use the distributive property to distribute the 8
-16+16n+3n=40+5n
-16+19n=40+5n
-16=40+5n-19n
-16=40-14n
-14n+40= -16
-14n= -16-40
-14n= -56
n= -56/-14
n= 4