Whakaoti i te {l}{2.860*x+3.100*23=119.920}{y=2.860*x+3.100*23}{z=y}{a=z}{text{Solvefor}btext{where}}{b=a}

$$\left. \begin{array} { l } { 2.860 \cdot x + 3.100 \cdot 23 = 119.920 }\\ { y = 2.860 \cdot x + 3.100 \cdot 23 }\\ { z = y }\\ { a = z }\\ { \text{Solve for } b \text{ where} } \\ { b = a } \end{array} \right.$$

Whakaoti mō x, y, z, a, b

$$b=119.92$$

Ngā Upane Otinga

Whakaarohia te whārite tuatahi. Whakareatia te 3.1 ki te 23, ka 71.3.

$$2.86x+71.3=119.92$$

Tangohia te 71.3 mai i ngā taha e rua.

$$2.86x=119.92-71.3$$

Tangohia te 71.3 i te 119.92, ka 48.62.

$$2.86x=48.62$$

Whakawehea ngā taha e rua ki te 2.86.

$$x=\frac{48.62}{2.86}$$

Whakarohaina te \frac{48.62}{2.86} mā te whakarea i te taurunga me te tauraro ki te 100.

$$x=\frac{4862}{286}$$

Whakawehea te 4862 ki te 286, kia riro ko 17.

$$x=17$$

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

$$y=2.86\times 17+3.1\times 23$$

Whakareatia te 2.86 ki te 17, ka 48.62.

$$y=48.62+3.1\times 23$$

Whakareatia te 3.1 ki te 23, ka 71.3.

$$y=48.62+71.3$$

Tāpirihia te 48.62 ki te 71.3, ka 119.92.

$$y=119.92$$

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

$$z=119.92$$

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

$$a=119.92$$

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

$$b=119.92$$

Kua oti te pūnaha te whakatau.

$$x=17 y=119.92 z=119.92 a=119.92 b=119.92$$