Whakaoti i te {l}{1x+y=250}{x/19+5/10=18}

$$\left. \begin{array} { l } { 1 x + y = 250 } \\ { \frac { x } { 19 } + \frac { 5 } { 10 } = 18 } \end{array} \right.$$

Whakaoti mō x, y

$$x = \frac{665}{2} = 332\frac{1}{2} = 332.5$$

$$y = -\frac{165}{2} = -82\frac{1}{2} = -82.5$$

Ngā Upane Otinga

Whakaarohia te whārite tuarua. Me whakarea ngā taha e rua o te whārite ki te 190, arā, te tauraro pātahi he tino iti rawa te kitea o 19,10.

$$10x+19\times 5=3420$$

Whakareatia te 19 ki te 5, ka 95.

$$10x+95=3420$$

Tangohia te 95 mai i ngā taha e rua.

$$10x=3420-95$$

Tangohia te 95 i te 3420, ka 3325.

$$10x=3325$$

Whakawehea ngā taha e rua ki te 10.

$$x=\frac{3325}{10}$$

Whakahekea te hautanga \frac{3325}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$x=\frac{665}{2}$$

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

$$1\times \frac{665}{2}+y=250$$

Whakareatia te 1 ki te \frac{665}{2}, ka \frac{665}{2}.

$$\frac{665}{2}+y=250$$

Tangohia te \frac{665}{2} mai i ngā taha e rua.

$$y=250-\frac{665}{2}$$

Tangohia te \frac{665}{2} i te 250, ka -\frac{165}{2}.

$$y=-\frac{165}{2}$$

Kua oti te pūnaha te whakatau.

$$x=\frac{665}{2} y=-\frac{165}{2}$$