Whakaoti mō x
x=-3
Graph
Tohaina
Kua tāruatia ki te papatopenga
10x+15-x=-12
Tangohia te x mai i ngā taha e rua.
9x+15=-12
Pahekotia te 10x me -x, ka 9x.
9x=-12-15
Tangohia te 15 mai i ngā taha e rua.
9x=-27
Tangohia te 15 i te -12, ka -27.
x=\frac{-27}{9}
Whakawehea ngā taha e rua ki te 9.
x=-3
Whakawehea te -27 ki te 9, kia riro ko -3.
Ngā Tauira
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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]
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}