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Answer»

ANSWER:

x=95/12

Step-by-step explanation:

MEAN = number of observation / TOTAL number of observation

mean = 5+6x+3x+x+2x/5

20 =5+12x/5

20*5 =5+12x

100-5 = 12x

95 = 12x

95/12 = x

to verify substitute the value of x

mean = 5+6*95/12+3*95/12+95/12+2*95/12 /5

mean = 100/5

mean. = 20

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