Whakaoti mō x
x=-\frac{y}{2}+15
Whakaoti mō y
y=30-2x
Graph
Tohaina
Kua tāruatia ki te papatopenga
400x=6000-200y
Tangohia te 200y mai i ngā taha e rua.
\frac{400x}{400}=\frac{6000-200y}{400}
Whakawehea ngā taha e rua ki te 400.
x=\frac{6000-200y}{400}
Mā te whakawehe ki te 400 ka wetekia te whakareanga ki te 400.
x=-\frac{y}{2}+15
Whakawehe 6000-200y ki te 400.
200y=6000-400x
Tangohia te 400x mai i ngā taha e rua.
\frac{200y}{200}=\frac{6000-400x}{200}
Whakawehea ngā taha e rua ki te 200.
y=\frac{6000-400x}{200}
Mā te whakawehe ki te 200 ka wetekia te whakareanga ki te 200.
y=30-2x
Whakawehe 6000-400x ki te 200.
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