Whakaoti mō x
x=\frac{y}{2}
Whakaoti mō y
y=2x
Graph
Tohaina
Kua tāruatia ki te papatopenga
2y-8x+4x=0
Me tāpiri te 4x ki ngā taha e rua.
2y-4x=0
Pahekotia te -8x me 4x, ka -4x.
-4x=-2y
Tangohia te 2y mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
\frac{-4x}{-4}=-\frac{2y}{-4}
Whakawehea ngā taha e rua ki te -4.
x=-\frac{2y}{-4}
Mā te whakawehe ki te -4 ka wetekia te whakareanga ki te -4.
x=\frac{y}{2}
Whakawehe -2y ki te -4.
2y=-4x+8x
Me tāpiri te 8x ki ngā taha e rua.
2y=4x
Pahekotia te -4x me 8x, ka 4x.
\frac{2y}{2}=\frac{4x}{2}
Whakawehea ngā taha e rua ki te 2.
y=\frac{4x}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
y=2x
Whakawehe 4x ki te 2.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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699 * 533
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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}