Whakaoti mō x
x=9
Graph
Tohaina
Kua tāruatia ki te papatopenga
72+118=20x+10
Whakareatia ngā taha e rua o te whārite ki te 2.
190=20x+10
Tāpirihia te 72 ki te 118, ka 190.
20x+10=190
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
20x=190-10
Tangohia te 10 mai i ngā taha e rua.
20x=180
Tangohia te 10 i te 190, ka 180.
x=\frac{180}{20}
Whakawehea ngā taha e rua ki te 20.
x=9
Whakawehea te 180 ki te 20, kia riro ko 9.
Ngā Tauira
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Poukapa
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whārite Simultaneous
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Whakarerekētanga
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Whakaurunga
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}