Answer:

Step-by-step explanation:
First, you add 66 to both sides so then the equation you are trying to solve will be: 
Finally, you simplify and get: 
Hope this helped!
Answer:
16
Step-by-step explanation:
Answer: A
Step-by-step explanation:

We need to get this form: 
we need to begin by isolating y on the left side. To do this, we must subtract 4x.

Rewrite it so that we get this form: 

Since y needs to be completely isolated, divide by 4.

Divide;

Answer:
pqr = pqr
Step-by-step explanation:
The reflexive property states that x = x
In your example, pqr = pqr
It seems simple, but this property can be confusing, so let me know if you have any questions about my answer.
Hope this helps :)