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If f(x)=3x-15, then f^-1(x)

If f(x)=3x-15, then f^-1(x)
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If f(x)=3x-15, then f^-1(x)

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User Dsafa
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solve for y in x=3y-15, so you get x+15=3y -> y=(1/3)x+5
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User John McTighe
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