Whakaoti mō x
x=3
Graph
Tohaina
Kua tāruatia ki te papatopenga
-x+5=4+6x-20
Pahekotia te -4x me 3x, ka -x.
-x+5=-16+6x
Tangohia te 20 i te 4, ka -16.
-x+5-6x=-16
Tangohia te 6x mai i ngā taha e rua.
-7x+5=-16
Pahekotia te -x me -6x, ka -7x.
-7x=-16-5
Tangohia te 5 mai i ngā taha e rua.
-7x=-21
Tangohia te 5 i te -16, ka -21.
x=\frac{-21}{-7}
Whakawehea ngā taha e rua ki te -7.
x=3
Whakawehea te -21 ki te -7, 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}