Answer: -32
Step-by-step explanation:
[tex]3=\dfrac{g}{-4}-5\\\\\\8=\dfrac{g}{-4}\qquad \longrightarrow \qquad \text{added 5 to both sides}\\\\\\-32=g\qquad \longrightarrow \qquad \text{multiplied both sides by -4}\\\\\\\large\boxed{g=-32}[/tex]