Answer:
<h2>2. (0, -4)</h2>
Step-by-step explanation:

Answer:

Step-by-step explanation:
Given

Required:
Simplify
We start by opening the bracket


Collect Like Terms

Hence, the equivalent expression is 
Answer:
thanks for free point Mark me as brain list
That "equation" has an infinite number of "solutions", because
no matter what 'r' is, it's always a true statement.
The statement is equivalent to saying "I am I." or "You are you."
Answer:
-6.1 - (-3.13) = -2.97
Step-by-step explanation:
two negative symbols = a positive.