Question 956840
Translate from description in English language about numbers into a number sentence with numbers, including variables.


Mean usually means "AVERAGE".  You have a list of numbers and you want their average, and you want the average to be x.


{{{(SumOfTheListOfNumbers)/(HowManyNumbersInTheLIst)=x}}}


You also know that your list of numbers has five items, so
{{{(SumOfListOfNumbers)/5=x}}}


If one of the items in your list is actually also x, then you have the same general statement, but now, the sum will INCLUDE x.


{{{highlight_green((x+sumOfTheOtherListedNumbers)/5=x)}}}
and you know what list you have, and you can decide how to isolate and find x.