Whakaoti mō x
x=-2y
Whakaoti mō y
y=-\frac{x}{2}
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x=-4y
Tangohia te 4y mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
\frac{2x}{2}=-\frac{4y}{2}
Whakawehea ngā taha e rua ki te 2.
x=-\frac{4y}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
x=-2y
Whakawehe -4y ki te 2.
4y=-2x
Tangohia te 2x mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
\frac{4y}{4}=-\frac{2x}{4}
Whakawehea ngā taha e rua ki te 4.
y=-\frac{2x}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
y=-\frac{x}{2}
Whakawehe -2x ki te 4.
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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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}