[tex] \dfrac{2ab^2}{n}=y[/tex] [tex]\text{Solve for (a)}[/tex]
[tex]2ab^2=yn
[/tex] [tex]\text{Multiply both sides by n}[/tex]
[tex]ab^2= \dfrac{yn}{2} [/tex] [tex]\text{Divide both sides by 2}[/tex]
[tex]a= \dfrac{yn}{2b^2} [/tex] [tex]\text{Divide both sides by}[/tex][tex]b^2[/tex]
[tex]\text{Hence solved}[/tex]