Whakaoti mō x
x=-\frac{3y}{2}+15
Whakaoti mō y
y=-\frac{2x}{3}+10
Graph
Tohaina
Kua tāruatia ki te papatopenga
20x=300-30y
Tangohia te 30y mai i ngā taha e rua.
\frac{20x}{20}=\frac{300-30y}{20}
Whakawehea ngā taha e rua ki te 20.
x=\frac{300-30y}{20}
Mā te whakawehe ki te 20 ka wetekia te whakareanga ki te 20.
x=-\frac{3y}{2}+15
Whakawehe 300-30y ki te 20.
30y=300-20x
Tangohia te 20x mai i ngā taha e rua.
\frac{30y}{30}=\frac{300-20x}{30}
Whakawehea ngā taha e rua ki te 30.
y=\frac{300-20x}{30}
Mā te whakawehe ki te 30 ka wetekia te whakareanga ki te 30.
y=-\frac{2x}{3}+10
Whakawehe 300-20x ki te 30.
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