Question

Find the inverse

Answer 1

ok?

Answer 2

\[f(x)=\frac{ 1+5x }{ 7-3x }\]

Answer 3

Change the f(x) to y, then swap your x's and your y (e.g., write a y in place of each x, and and x in place of the y)

Then solve for y.

Answer 4

okay. stay so I can check with you

Answer 5

okay so I have \[-3^{2}+2y-1=0\]

Answer 6

am I on the right track?

Answer 7

\[y=\frac{1+5x}{7-3x}\]
as @DebbieG said switch the x's and y's
\[x=\frac{1+5y}{7-3y}\]
solve for y\[x(7-3y)=1+5y\\7x-3xy=1+5y\\7x-1=3xy+5y\\y(3x+5)=7x-1\\y=\frac{7x-1}{3x+5}\]

Answer 8

sorry, I was in another tab. Well, no, I'm not sure where you came up with that. @zzr0ck3r shows you how to do it above.

Answer 9

thanks guys

Answer 10

np