Whakaoti i te 1635*0.8-x/x=0.09

$$\frac { 1635 \times 0.8 - x } { x } = 0.09$$

Whakaoti mō x

$$x=1200$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tē taea kia ōrite te tāupe x ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te x.

$$1635\times 0.8-x=0.09x$$

Whakareatia te 1635 ki te 0.8, ka 1308.

$$1308-x=0.09x$$

Tangohia te 0.09x mai i ngā taha e rua.

$$1308-x-0.09x=0$$

Pahekotia te -x me -0.09x, ka -1.09x.

$$1308-1.09x=0$$

Tangohia te 1308 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.

$$-1.09x=-1308$$

Whakawehea ngā taha e rua ki te -1.09.

$$x=\frac{-1308}{-1.09}$$

Whakarohaina te \frac{-1308}{-1.09} mā te whakarea i te taurunga me te tauraro ki te 100.

$$x=\frac{-130800}{-109}$$

Whakawehea te -130800 ki te -109, kia riro ko 1200.

$$x=1200$$