Whakaoti i te y+300=2.5(x+100)

$$y+300=2.5(x+100)$$

Whakaoti mō x

$$x=\frac{2y}{5}+20$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te 2.5 ki te x+100.

$$y+300=2.5x+250$$

Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.

$$2.5x+250=y+300$$

Tangohia te 250 mai i ngā taha e rua.

$$2.5x=y+300-250$$

Tangohia te 250 i te 300, ka 50.

$$2.5x=y+50$$

Whakawehea ngā taha e rua o te whārite ki te 2.5, he ōrite ki te whakarea i ngā taha e rua ki te tau huripoki o te hautanga.

$$\frac{2.5x}{2.5}=\frac{y+50}{2.5}$$

Mā te whakawehe ki te 2.5 ka wetekia te whakareanga ki te 2.5.

$$x=\frac{y+50}{2.5}$$

Whakawehe y+50 ki te 2.5 mā te whakarea y+50 ki te tau huripoki o 2.5.

$$x=\frac{2y}{5}+20$$

Whakaoti mō y

$$y=\frac{5x}{2}-50$$

Ngā Upane Otinga

Whakamahia te āhuatanga tohatoha hei whakarea te 2.5 ki te x+100.

$$y+300=2.5x+250$$

Tangohia te 300 mai i ngā taha e rua.

$$y=2.5x+250-300$$

Tangohia te 300 i te 250, ka -50.

$$y=2.5x-50$$