Hello there!
[tex]d=rt[/tex]
Explanation:
↓↓↓↓↓↓↓↓↓
First you had to do is switch sides of the equation.
[tex]rt=d[/tex]
Then you divide by t from both sides of the equation.
[tex]\frac{rt}{t}=\frac{d}{t} ; t\neq 0[/tex]
Simplify it should be the correct answer.
[tex]r=\frac{d}{t} ; t\neq 0[/tex]
Answer⇒⇒⇒⇒⇒ r=d/t or t≠0
Hope this helps!
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-Charlie