Answer:
[tex]g=\frac{x-2}{3}[/tex]
Step-by-step explanation:
[tex]x=3g+2\\\\x-2=3g+2-2\\\\x-2=3g\\\\\frac{x-2}{3}=\frac{3g}{3}\\\\\frac{x-2}{3}=g[/tex]