\left\{ \begin{array} { l } { x = 2 y } \\ { y = 3 y - 10 } \end{array} \right.
Whakaoti mō x, y
x=10
y=5
Graph
Tohaina
Kua tāruatia ki te papatopenga
y-3y=-10
Whakaarohia te whārite tuarua. Tangohia te 3y mai i ngā taha e rua.
-2y=-10
Pahekotia te y me -3y, ka -2y.
y=\frac{-10}{-2}
Whakawehea ngā taha e rua ki te -2.
y=5
Whakawehea te -10 ki te -2, kia riro ko 5.
x=2\times 5
Whakaarohia te whārite tuatahi. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
x=10
Whakareatia te 2 ki te 5, ka 10.
x=10 y=5
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
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