remember, the average score is (the total score)/(games played)

the total score in the first four games was 88, since the average was 22 and they played 4 games, so it was an average of 22 points per game, which is where the 22 times 4 came from. but that isn't their total score anymore, they played a fifth game in which they scored x points. so we have to add that. now that they played 5 games, we divide by 5 to get the result. we are told ahead of time the result is 23, so we just equate the fraction to 23. now all that's left to do is solve for x

the objective is to find what x equals.how would i be able to calculate the fraction with out knowing what x equals?

are you asking me how to solve the equation?