The most points Sidney has scored in a basketball game is 28. She is trying to tie that record in her current game. Write an equation for the number of points Sidney needs to score to tie her record,r

The most points Sidney has scored in a basketball game is 28. She is trying to tie that record in her current game. Write an equation for the number of points Sidney needs to score to tie her record,r, if she has already scored,p, points.