Whakaoti mō x
x=7
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x+2-7x=-19
Tangohia te 7x mai i ngā taha e rua.
-3x+2=-19
Pahekotia te 4x me -7x, ka -3x.
-3x=-19-2
Tangohia te 2 mai i ngā taha e rua.
-3x=-21
Tangohia te 2 i te -19, ka -21.
x=\frac{-21}{-3}
Whakawehea ngā taha e rua ki te -3.
x=7
Whakawehea te -21 ki te -3, kia riro ko 7.
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}