the average of 2, 7, 6 andx is 5 find x?
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Find the value of x:
average 1 = 5
(2 + 7 + 6 + x)/4 = 5
(15 + x)/4 = 5
15 + x = 5 × 4
15 + x = 20
x = 20 - 15
x = 5
average 1 = 5
(2 + 7 + 6 + x)/4 = 5
(15 + x)/4 = 5
15 + x = 5 × 4
15 + x = 20
x = 20 - 15
x = 5
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