Question

if f (x)=5x+7,thenf-1(x)=

Answer 1

Answer:

The Answer Is 9x-6

____

-7x+5

Step-by-step explanation:

Solution

giver f(x) = 5x +6

7x + 9

To find - f-¹ (x) Solution!- f(x)= Sa+6 7x+9

f(x)= x 011 f(x)=x

Consider

J₁¹ (x)=x by datinition

f(x) = 5f¹(x) +6² 78-1(x) + 9 =

sf (x) + 6 = 7xg-¹ (x) + 9x

f(x). (s-7x) = 9x-C f(x) = 9x-6 = 9x-67

____ ____

5 -7 - 7 x+5

Hence the answer is 9x-6

____

-7x+5

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Answer 2

Answer:

126

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