The goal to proving identities is to transform one side into the other. We can only pick one side to transform while the other side stays the same the entire time. The general rule of thumb is to transform the more complicated side (though there may be exceptions to this guideline).
So I'll take the left hand side and try to turn it into 
One way we can do that is through the following steps:

Since we've shown that the left hand side transforms into the right hand side, this verifies the equation is an identity.
Answer:
Step-by-step explanation:
Answer:

Step-by-step explanation:

Add the fractions since the denominators are the same.


Simplifying the fraction.


Answer:
2z + 5
Step-by-step explanation:
you have to combine like terms
subtract 4z - 2z and you get 2z
the number with the variable next to it goes first not the constant
2z + 5
the variable is z and the constant is 5 because it doesn't have variable next to it
hope this makes sense and helps :)
tell me if you have any questions
Answer:
"$164000" is the appropriate answer.
Step-by-step explanation:
Let the selling price be "s".
As per the question,
If Jane take 5.5% of selling price i.e.,
= 
Given commission,
= $9,020
then,
The selling price will be:
⇒ 

($)