Whakaoti mō x
x=15
Graph
Tohaina
Kua tāruatia ki te papatopenga
-7x=87-192
Tangohia te 192 mai i ngā taha e rua.
-7x=-105
Tangohia te 192 i te 87, ka -105.
x=\frac{-105}{-7}
Whakawehea ngā taha e rua ki te -7.
x=15
Whakawehea te -105 ki te -7, kia riro ko 15.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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\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]
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Whakarerekētanga
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
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