The two lines of regression are 3x + 2y = 26 and 6x + y = 31 then the mean of x is

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Management
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Human Resource Management
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The two lines of regression are 3<em>x </em>+ 2<em>y </em>= 26 and 6<em>x </em>+ <em>y </em>= 31 then the mean of <em>x </em>is