Question

the mean of 4x, x+9, 3x-4, 2x-2 and x+ 4 is 9. find the value of x​

Answer 1

its own equation ask your teacher follow me

Answer 2

$\huge\star\bold\pink{Answer:-}$

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$\red{Mean = \frac{Sum\:of \:observation}{No.\: of\: observation}}$

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${9 = \frac{4x+x+9+3x-4+2x-2+x+4}{5}}$

$11x+7 = 45$

$11x = 38$

$x = \frac{38}{11}$

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