Question

Gia got some books from Library yesterday she got five books today Gia returned three books Gia has six books how many books did gia have to begin

Answer 1

Answer: 4

Explanation:

You can write an algebraic expression to represent the sequence with the books in this way:

• yesterday she got five books: 5
• today returned three books: - 3
• how many books did Gia have to begin: n
• At the end she has six books, which means that you can set an equality:

       n + 5 - 3 = 6

Now you follow these steps to clear the unknown:

• do the operations in the left side: n + 2 = 6
• use subtraction property of equality: n = 6 - 2
• do the operations: n = 4

And that is the number of books whith which Gina started: 4