Whakaoti mō x
x=10-y
Whakaoti mō y
y=10-x
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x=20-2y
Tangohia te 2y mai i ngā taha e rua.
\frac{2x}{2}=\frac{20-2y}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{20-2y}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
x=10-y
Whakawehe 20-2y ki te 2.
2y=20-2x
Tangohia te 2x mai i ngā taha e rua.
\frac{2y}{2}=\frac{20-2x}{2}
Whakawehea ngā taha e rua ki te 2.
y=\frac{20-2x}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
y=10-x
Whakawehe 20-2x ki te 2.
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