Suppose a 99% confidence interval for the mean weight of high school girls in pounds is (102.3, 106.5). If we had measured the w
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We'd rather not have x on both sides of the equation when trying to solve this. To eliminate the x on the right side, subtract both sides by x.
Let's get eliminate the "5" on the left side. Subtract both sides by 5.
To finish this, divide both sides by 4.
That is the answer. Hope this helps! :)