Question

$\frac{b + (b + 1) + (b + 2)}{4} = 21$
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Answer 1

Answer:

27

Step-by-step explanation:

b+(b+1)+(b+2)/4=2

3b+3=21×4

3b+3=84

3b=84-3

3b=81

b=81/3

b=27