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Let f(x)= 7x-13.find f powered to the negative 1 power (x)
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Let f(x)= 7x-13.find f powered to the negative 1 power (x)

User Yuvi
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Let f(x) be y so you have
y=7x-13
Reverse the signs of x and y so you have
x=7y-13
And then find the value of y
x+13=7y
(x+13)/7=y
And change y to f(x)-1
User Siddhusingh
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