if the mean of 2x+3, 3x+4, x+7,x-3, 4x-7 is 14.find X
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Given: The mean of x + 2, 2x + 3, 3x + 4 and 4x + 5 is x + 2.
To find: The value of x
The mean of several observations is defined as the sum of the observations divided by the number of observations.
Hence, the mean of the given observations is,
According to the given information, we have
On further simplification, we get
In this way, we find that the value of x is −1.
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