Question

if f(2x+1) = 6x+5, find f(x)

Answer 1

Answer:

2x+1=6x+5

2x-6x=5-1

-4x =4

x =4/-4=-1

Answer 2

solution,

Given,

f(2x+1)= 6x+5

f(x)=?

now,

when $x=\frac{1}{2}(x-1)$

or, f[$2*\frac{1}{2}(x-1)$]=$6*\frac{1}{2}(x-1)+5$

or, f(x-1+1)= 3(x-1)+5

or, f(x)= 3x-3+5

:. f(x)= 3x+2