3^x/3^y = 81
What is x - y?
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answer:
x - y = 4
explanation:
[tex]\rightarrow \boxed{\frac{3^x}{3^y} = 81}[/tex]
[tex]\rightarrow \boxed{3^{x-y} = 81}}[/tex]
[tex]\rightarrow \boxed{3^{x-y} = 3^4}}[/tex]
[tex]\rightarrow \boxed{x-y = 4}[/tex]