Whakaoti mō x
x=12
Graph
Tohaina
Kua tāruatia ki te papatopenga
x+8=2x-4
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x-2.
x+8-2x=-4
Tangohia te 2x mai i ngā taha e rua.
-x+8=-4
Pahekotia te x me -2x, ka -x.
-x=-4-8
Tangohia te 8 mai i ngā taha e rua.
-x=-12
Tangohia te 8 i te -4, ka -12.
x=12
Me whakarea ngā taha e rua ki te -1.
Ngā Tauira
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{ 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}