Answer :
In the equation
[tex]v=\text{iwh}[/tex]we divide both sides by ih to get
[tex]\frac{1}{ih}\times v=\frac{iwh}{ih}[/tex]On RHS the ih in the numerator gets cancelled by ih in the denominator, leaving only h on the right-hand side; therefore, the equal we get is
[tex]\textcolor{#FF7968}{w=\frac{v}{ih}}[/tex]which is our answer!