Keep in mind: G is acting as a unknown variable, commonly used as "x" So we need to find the variable, and then we solve for g until we get "0" for our problem. Okay so lets start off by factoring our equation, in this case you do left first.
\(3g+1*g+1=0\) Alright, now we can set out "o" as the equal to all of our factors. \(g+1=0\) And now you need to solve for that, And you get -1 for our answer.