Answer:
Step-by-step explanation:
Given:
To solve for n first isolate n:
Divide both sides by rt:
[tex]\\ \sf\longmapsto Pv=nrt[/tex]
[tex]\\ \sf\longmapsto nrt=Pv[/tex]
[tex]\\ \sf\longmapsto nr=\dfrac{Pv}{t}[/tex]
[tex]\\ \sf\longmapsto n=\dfrac{Pv}{rt}[/tex]