Question

if f(x)=x-2, for what value of x does f(3x)=f(x+1)

Answer 1

Well, you have to replace the variable assigned, namely: \[f(3x)=(3x)-2\] and \[f(x+1)= (x+1)-2\], then you equals the equations: and clear x :D

Answer 2

\[3x - 2 = (x -2) + 1\]Solve the equality.

Answer 3

equate*

Answer 4

replace x with 3x

Answer 5

f(x)=x-2

By putting 3x instead of x. we gt f(3x)=3x-2

& by putting x+1 instead of x we gt f(x+1)=x+1-2=x-1

So, f(3x)=f(x+1) => 3x-2=x-1

solve for x :)