If i understood it right when you estimate the quotient it help you have an idea
She started with x books. She purchased 3 more.
Add the two amounts (x and 3) to find out the number of books she has now.
Now she has x + 3 books.
We are told she now has 11 books, so x + 3 must equal 11.
The equation is x + 3 = 11
Answer: C.) x + 3 = 11
If the product of two integers is negative that means that the integers that were multiplied together consisted of a positive integer and a negative integer.
Ex: -2 X 4 = -8