0.002(2-k)+0.07(k-9)=1

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1 Answer

0.002(2-x) +0.07(x-9)=1

or 2(2-x) +70(x-9) =1000

4 -2x +70x-630=1000

(70x-2x)=1000+630-4

68x=1626

x=1626/68=23.91176471
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