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

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

Whakaoti mō x, y

$$x = \frac{3401}{10} = 340\frac{1}{10} = 340.1$$

$$y = -\frac{901}{10} = -90\frac{1}{10} = -90.1$$

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.

$$10x+19=3420$$

Tangohia te 19 mai i ngā taha e rua.

$$10x=3420-19$$

Tangohia te 19 i te 3420, ka 3401.

$$10x=3401$$

Whakawehea ngā taha e rua ki te 10.

$$x=\frac{3401}{10}$$

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

$$\frac{3401}{10}+y=250$$

Tangohia te \frac{3401}{10} mai i ngā taha e rua.

$$y=250-\frac{3401}{10}$$

Tangohia te \frac{3401}{10} i te 250, ka -\frac{901}{10}.

$$y=-\frac{901}{10}$$

Kua oti te pūnaha te whakatau.

$$x=\frac{3401}{10} y=-\frac{901}{10}$$