Whakaoti mō x, y
x=-1
y=-2
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x+7\left(-2\right)=-16
Whakaarohia te whārite tuatahi. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
2x-14=-16
Whakareatia te 7 ki te -2, ka -14.
2x=-16+14
Me tāpiri te 14 ki ngā taha e rua.
2x=-2
Tāpirihia te -16 ki te 14, ka -2.
x=\frac{-2}{2}
Whakawehea ngā taha e rua ki te 2.
x=-1
Whakawehea te -2 ki te 2, kia riro ko -1.
x=-1 y=-2
Kua oti te pūnaha te whakatau.
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]
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Whakarerekētanga
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}