Respuesta :
Answer:
D. 9
Step-by-step explanation:
[tex]3^{x-2}=3^7\iff x-2=7\qquad\text{add 2 to both sides}\\\\x-2+2=7+2\\\\x=9[/tex]
Answer:
Step-by-step explanation:
[tex]3^{x-2}=3^7\iff x-2=7\qquad\text{add 2 to both sides}\\\\x-2+2=7+2\\\\x=9[/tex]