Whakaoti mō x
x=\frac{y+7}{2}
Whakaoti mō y
y=2x-7
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x=14+2y
Me tāpiri te 2y ki ngā taha e rua.
4x=2y+14
He hanga arowhānui tō te whārite.
\frac{4x}{4}=\frac{2y+14}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{2y+14}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
x=\frac{y+7}{2}
Whakawehe 14+2y ki te 4.
-2y=14-4x
Tangohia te 4x mai i ngā taha e rua.
\frac{-2y}{-2}=\frac{14-4x}{-2}
Whakawehea ngā taha e rua ki te -2.
y=\frac{14-4x}{-2}
Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.
y=2x-7
Whakawehe 14-4x ki te -2.
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
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