Question

Tamkeea went to the mall shopping. She spent $28 out of her piggy bank at the mall on a new top for the dance. Write what transaction she would have to make to get back to the original amount in her piggy bank.

Answer 1

This is the concept of algebra, we are required to right an expression that Tamkeea will have to make in order to get her original amount back;
Let y be the original amount and x be the amount that remained after she spent $28. The original amount can therefore be recovered using the model given by:
original amount=[amount spent]+[remaining amount]
y=x+28