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Mathematics, 21.06.2019 17:30 bella51032

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=


If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

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If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=
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