SOLUTION: If y=f(x) = 3x + 7 / 4x - 9 , show that x = f(y) Thanks.

SOLUTION: If y=f(x) = 3x + 7 / 4x - 9 , show that x = f(y) Thanks.

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Question 881820: If y=f(x) = 3x + 7 / 4x - 9 , show that x = f(y)
Thanks.
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
You are expecting that the function as its own input will be x?

Multiply top and bottom by

NO! That is not x.

Did you really intend the term, in the original function definition?
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