Whakaoti mō x
x=3
Graph
Pātaitai
Linear Equation
2.1=0.7x
Tohaina
Kua tāruatia ki te papatopenga
\frac{2.1}{0.7}=x
Whakawehea ngā taha e rua ki te 0.7.
\frac{21}{7}=x
Whakarohaina te \frac{2.1}{0.7} mā te whakarea i te taurunga me te tauraro ki te 10.
3=x
Whakawehea te 21 ki te 7, kia riro ko 3.
x=3
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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Poukapa
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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}