Question 912679
Let "me" be the number x. It is unknown as this point.


81 divided by x = x


81/x = x


81 = x*x ... Multiply both sides by x.


81 = x^2


x^2 = 81


x = sqrt(81)


x = 9


Notice how 54/x = 54/9 = 6. So that checks out.


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Thanks,


Jim