Datrys {l}{-15=-4m}{n=5}{o=n}{p=o}{q=p}{r=q}{s=r}{t=s}{u=t}{text{Solvefor}vtext{where}}{v=u}

$$\left. \begin{array} { l } { -15 = -4 m }\\ { n = 5 }\\ { o = n }\\ { p = o }\\ { q = p }\\ { r = q }\\ { s = r }\\ { t = s }\\ { u = t }\\ { \text{Solve for } v \text{ where} } \\ { v = u } \end{array} \right.$$

Datrys ar gyfer m, n, o, p, q, r, s, t, u, v

$$v=5$$

Camau Ateb

Ystyriwch yr hafaliad cyntaf. Rhannu’r ddwy ochr â -4.

$$\frac{-15}{-4}=m$$

Gellir symlhau’r ffracsiwn \frac{-15}{-4} i \frac{15}{4} drwy dynnu’r arwydd negatif o’r rhifiadur a’r enwadur.

$$\frac{15}{4}=m$$

Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.

$$m=\frac{15}{4}$$

Mae’r system wedi’i datrys nawr.

$$m=\frac{15}{4} n=5 o=5 p=5 q=5 r=5 s=5 t=5 u=5 v=5$$