Whakaoti mō x
x=\frac{4y}{15}
Whakaoti mō y
y=\frac{15x}{4}
Graph
Tohaina
Kua tāruatia ki te papatopenga
30x+2y=10y
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
30x=10y-2y
Tangohia te 2y mai i ngā taha e rua.
30x=8y
Pahekotia te 10y me -2y, ka 8y.
\frac{30x}{30}=\frac{8y}{30}
Whakawehea ngā taha e rua ki te 30.
x=\frac{8y}{30}
Mā te whakawehe ki te 30 ka wetekia te whakareanga ki te 30.
x=\frac{4y}{15}
Whakawehe 8y ki te 30.
10y-2y=30x
Tangohia te 2y mai i ngā taha e rua.
8y=30x
Pahekotia te 10y me -2y, ka 8y.
\frac{8y}{8}=\frac{30x}{8}
Whakawehea ngā taha e rua ki te 8.
y=\frac{30x}{8}
Mā te whakawehe ki te 8 ka wetekia te whakareanga ki te 8.
y=\frac{15x}{4}
Whakawehe 30x ki te 8.
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