# Algebra

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How do I find the value of x such that the data set has the given mean.
Example: 11,12,5,3,x;
Mean=7.4

• Algebra -

sum=(7.4)5=37. 37-11-12-5-3=x=6.

• Algebra -

(11+12+5+3+x)/5=7.4
31+x/5=7.4
Multiply both sides by 5
31+x=37
x=6

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