Whakaoti mō x
x=2
Graph
Tohaina
Kua tāruatia ki te papatopenga
3x+4+4x=18
Me tāpiri te 4x ki ngā taha e rua.
7x+4=18
Pahekotia te 3x me 4x, ka 7x.
7x=18-4
Tangohia te 4 mai i ngā taha e rua.
7x=14
Tangohia te 4 i te 18, ka 14.
x=\frac{14}{7}
Whakawehea ngā taha e rua ki te 7.
x=2
Whakawehea te 14 ki te 7, kia riro ko 2.
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}