Whakaoti mō x
x=\frac{2-y}{5}
Whakaoti mō y
y=2-5x
Graph
Tohaina
Kua tāruatia ki te papatopenga
25x=10-5y
Tangohia te 5y mai i ngā taha e rua.
\frac{25x}{25}=\frac{10-5y}{25}
Whakawehea ngā taha e rua ki te 25.
x=\frac{10-5y}{25}
Mā te whakawehe ki te 25 ka wetekia te whakareanga ki te 25.
x=\frac{2-y}{5}
Whakawehe 10-5y ki te 25.
5y=10-25x
Tangohia te 25x mai i ngā taha e rua.
\frac{5y}{5}=\frac{10-25x}{5}
Whakawehea ngā taha e rua ki te 5.
y=\frac{10-25x}{5}
Mā te whakawehe ki te 5 ka wetekia te whakareanga ki te 5.
y=2-5x
Whakawehe 10-25x ki te 5.
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