Answers

2016-07-03T21:36:11+08:00
1 is the value of x (maybe)
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  • Brainly User
2016-07-03T22:20:45+08:00
[(3) + (3x+5)]/2 = 8

[3x + 8]/2 = 8

3x + 8 = 8 (2)

3x + 8 = 16

3x = 16 - 8

3x/3 = 8/3

x = 8/3   ⇒  ANSWER

Check:

[8/3 + 3(8/3) + 5]/2 = 8

[3+ 8 + 5]/2 = 8

16/2 = 8

8 = 8   (True)

The sequence: 3,  8,  3(8/3)+5
                           3,  8,  13


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