Whakaoti mō x
x=2-y
Whakaoti mō y
y=2-x
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x=4-2y
Tangohia te 2y mai i ngā taha e rua.
\frac{2x}{2}=\frac{4-2y}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{4-2y}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
x=2-y
Whakawehe 4-2y ki te 2.
2y=4-2x
Tangohia te 2x mai i ngā taha e rua.
\frac{2y}{2}=\frac{4-2x}{2}
Whakawehea ngā taha e rua ki te 2.
y=\frac{4-2x}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
y=2-x
Whakawehe 4-2x ki te 2.
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