Datrys {l}{3t-3=5}{4s-37=t}

$$\left. \begin{array} { l } { 3 t - 3 = 5 } \\ { 4 s - 37 = t } \end{array} \right.$$

Datrys ar gyfer t, s

$$t = \frac{8}{3} = 2\frac{2}{3} \approx 2.666666667$$

$$s = \frac{119}{12} = 9\frac{11}{12} \approx 9.916666667$$

Camau Ateb

Ystyriwch yr hafaliad cyntaf. Ychwanegu 3 at y ddwy ochr.

$$3t=5+3$$

Adio 5 a 3 i gael 8.

$$3t=8$$

Rhannu’r ddwy ochr â 3.

$$t=\frac{8}{3}$$

Ystyriwch yr ail hafaliad. Mewnosod y gwerthoedd sy’n hysbys i’r hafaliad.

$$4s-37=\frac{8}{3}$$

Ychwanegu 37 at y ddwy ochr.

$$4s=\frac{8}{3}+37$$

Adio \frac{8}{3} a 37 i gael \frac{119}{3}.

$$4s=\frac{119}{3}$$

Rhannu’r ddwy ochr â 4.

$$s=\frac{\frac{119}{3}}{4}$$

Mynegwch \frac{\frac{119}{3}}{4} fel ffracsiwn unigol.

$$s=\frac{119}{3\times 4}$$

Lluosi 3 a 4 i gael 12.

$$s=\frac{119}{12}$$

Mae’r system wedi’i datrys nawr.

$$t=\frac{8}{3} s=\frac{119}{12}$$