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Whakaoti mō x, y
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Tohaina

x=8.89\times 990
Whakaarohia te whārite tuatahi. Me whakarea ngā taha e rua ki te 990.
x=8801.1
Whakareatia te 8.89 ki te 990, ka 8801.1.
\frac{8801.1}{850-y}=9.9
Whakaarohia te whārite tuarua. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
8801.1=9.9\left(-y+850\right)
Tē taea kia ōrite te tāupe y ki 850 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te -y+850.
8801.1=-9.9y+8415
Whakamahia te āhuatanga tohatoha hei whakarea te 9.9 ki te -y+850.
-9.9y+8415=8801.1
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-9.9y=8801.1-8415
Tangohia te 8415 mai i ngā taha e rua.
-9.9y=386.1
Tangohia te 8415 i te 8801.1, ka 386.1.
y=\frac{386.1}{-9.9}
Whakawehea ngā taha e rua ki te -9.9.
y=\frac{3861}{-99}
Whakarohaina te \frac{386.1}{-9.9} mā te whakarea i te taurunga me te tauraro ki te 10.
y=-39
Whakawehea te 3861 ki te -99, kia riro ko -39.
x=8801.1 y=-39
Kua oti te pūnaha te whakatau.