Question

F(x+3)=2x+5 find f(x)​

Answer 1

Hello,

f(x)=2x-1

Explanation:

`f(x+3)=2x+5\\\\Let\ say\ x=y-3\\\\f(y-3+3)=2(y-3)+5\\\\\\f(y)=2y-6+5\\\\f(y)=2y-1\\\\\boxed{f(x)=2x-1}\\`