what can i do to fix the lvalue in the code?

Question

https://code.sololearn.com/cmUPe4nQTRXU/?ref=app

Answer 1

There would be == instead of =

Single equal is used for assignment
Double equal is used for comparison

Btw what you are trying to do.

Answer 2

Ad here
if(n + 2 = 4){
one '='
if(n + 2 == 4){
And you will get an output