Answer:
i think it's B.2
Step-by-step explanation:
Because it has two sides equal or in this case two sides are the same
20n-n-11n =16
20n-12n=16
8n=16
n= 16/8
n=2
Answer:
1
Step-by-step explanation:
Use the Negative Power Rule:
x^-a=1/x^a
3*1/3
Cancel 3
=1
Answer:
2(x-9)
Step-by-step explanation:
Answer:
The solution is 
Step-by-step explanation:
we have

Solve for x
Distribute right side
Remember that



Combine like terms right side

Adds 80 both sides


Divide by 17 both sides

Rewrite
