Whakaoti i te {l}{x=3}{y=18x^-3}{text{Solvefor}ztext{where}}{z=y}

$$\left. \begin{array} { l } { x = 3 }\\ { y = 18 x ^ {-3} }\\ { \text{Solve for } z \text{ where} } \\ { z = y } \end{array} \right.$$

Whakaoti mō x, y, z

$$z=\frac{2}{3}\approx 0.666666667$$

Ngā Upane Otinga

Whakaarohia te whārite tuarua. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.

$$y=18\times 3^{-3}$$

Tātaihia te 3 mā te pū o -3, kia riro ko \frac{1}{27}.

$$y=18\times \frac{1}{27}$$

Whakareatia te 18 ki te \frac{1}{27}, ka \frac{2}{3}.

$$y=\frac{2}{3}$$

Whakaarohia te whārite tuatoru. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.

$$z=\frac{2}{3}$$

Kua oti te pūnaha te whakatau.

$$x=3 y=\frac{2}{3} z=\frac{2}{3}$$