Answer:
8.647 x 10^5
Step-by-step explanation:
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Thus ;

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Let d(x) = 2x - 4
Or
y = 2x - 4
We have replace x = y
x = 2y - 4
Now Isolate "y"
x + 4 = 2y
Pass "2" dividing
(x + 4) / 2 = y
y = x/2 + 2
Or
d(x)^-1 = x/2 + 2
Step-by-step explanation:

Answer:
6.0
Step-by-step explanation:
: (2.0+(2.0+2.0)) = 6.0