Whakaoti mō x
x=13-2y
Whakaoti mō y
y=\frac{13-x}{2}
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-5=8-2y
Tangohia te 2y mai i ngā taha e rua.
x=8-2y+5
Me tāpiri te 5 ki ngā taha e rua.
x=13-2y
Tāpirihia te 8 ki te 5, ka 13.
2y-5=8-x
Tangohia te x mai i ngā taha e rua.
2y=8-x+5
Me tāpiri te 5 ki ngā taha e rua.
2y=13-x
Tāpirihia te 8 ki te 5, ka 13.
\frac{2y}{2}=\frac{13-x}{2}
Whakawehea ngā taha e rua ki te 2.
y=\frac{13-x}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga 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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