Réitigh v=p(1-d%)

$$v = p ( 1 - d \% )$$

Réitigh do d.

$$\left\{\begin{matrix}d=-\frac{100v}{p}+100\text{, }&p\neq 0\\d\in \mathrm{R}\text{, }&v=0\text{ and }p=0\end{matrix}\right.$$

Céimeanna chun Cothromóidí Líneacha a Réiteach

Úsáid an t-airí dáileach chun p a mhéadú faoi 1-\frac{d}{100}.

$$v=p+p\left(-\frac{d}{100}\right)$$

Scríobh p\left(-\frac{d}{100}\right) mar chodán aonair.

$$v=p+\frac{-pd}{100}$$

Athraigh na taobhanna ionas go mbeidh na téarmaí inathraitheacha ar fad ar an taobh clé.

$$p+\frac{-pd}{100}=v$$

Bain p ón dá thaobh.

$$\frac{-pd}{100}=v-p$$

Méadaigh an dá thaobh den chothromóid faoi 100.

$$-pd=100v-100p$$

Tá an chothromóid i bhfoirm chaighdeánach.

$$\left(-p\right)d=100v-100p$$

Roinn an dá thaobh faoi -p.

$$\frac{\left(-p\right)d}{-p}=\frac{100v-100p}{-p}$$

Má roinntear é faoi -p cuirtear an iolrúchán faoi -p ar ceal.

$$d=\frac{100v-100p}{-p}$$

Roinn 100v-100p faoi -p.

$$d=-\frac{100v}{p}+100$$

Réitigh do p.

$$\left\{\begin{matrix}p=-\frac{100v}{d-100}\text{, }&d\neq 100\\p\in \mathrm{R}\text{, }&v=0\text{ and }d=100\end{matrix}\right.$$