Whakaoti mō x
x=\frac{2\left(y+9\right)}{5}
Whakaoti mō y
y=\frac{5x}{2}-9
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x=18+2y
Me tāpiri te 2y ki ngā taha e rua.
5x=2y+18
He hanga arowhānui tō te whārite.
\frac{5x}{5}=\frac{2y+18}{5}
Whakawehea ngā taha e rua ki te 5.
x=\frac{2y+18}{5}
Mā te whakawehe ki te 5 ka wetekia te whakareanga ki te 5.
-2y=18-5x
Tangohia te 5x mai i ngā taha e rua.
\frac{-2y}{-2}=\frac{18-5x}{-2}
Whakawehea ngā taha e rua ki te -2.
y=\frac{18-5x}{-2}
Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.
y=\frac{5x}{2}-9
Whakawehe 18-5x ki te -2.
Ngā Tauira
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whārite paerangi
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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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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}