Whakaoti mō x
x=3
Graph
Tohaina
Kua tāruatia ki te papatopenga
7=4-3x+12
Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te x-4.
7=16-3x
Tāpirihia te 4 ki te 12, ka 16.
16-3x=7
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-3x=7-16
Tangohia te 16 mai i ngā taha e rua.
-3x=-9
Tangohia te 16 i te 7, ka -9.
x=\frac{-9}{-3}
Whakawehea ngā taha e rua ki te -3.
x=3
Whakawehea te -9 ki te -3, kia riro ko 3.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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whārite paerangi
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Arithmetic
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}