Whakaoti i te 403+x/647+x=0.63

$$\frac { 403 + x } { 647 + x } = 0.63$$

Whakaoti mō x

$$x = \frac{461}{37} = 12\frac{17}{37} \approx 12.459459459$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tē taea kia ōrite te tāupe x ki -647 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te x+647.

$$403+x=0.63\left(x+647\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te 0.63 ki te x+647.

$$403+x=0.63x+407.61$$

Tangohia te 0.63x mai i ngā taha e rua.

$$403+x-0.63x=407.61$$

Pahekotia te x me -0.63x, ka 0.37x.

$$403+0.37x=407.61$$

Tangohia te 403 mai i ngā taha e rua.

$$0.37x=407.61-403$$

Tangohia te 403 i te 407.61, ka 4.61.

$$0.37x=4.61$$

Whakawehea ngā taha e rua ki te 0.37.

$$x=\frac{4.61}{0.37}$$

Whakarohaina te \frac{4.61}{0.37} mā te whakarea i te taurunga me te tauraro ki te 100.

$$x=\frac{461}{37}$$