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mean=5+6+7+x/4
5=18+x/x
5×4=18+x
20=18+x
x=20-18
=2
Answered by
1
5+6+7+x/4 = 5
then,
18+x/4 = 5
18 + x = 20 (4x5)
x = 20 - 18
x = 2
hope this answer will help you buddy
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