Whakaoti mō x
x=\frac{39-9y}{2}
Whakaoti mō y
y=-\frac{2x}{9}+\frac{13}{3}
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x=39-9y
Tangohia te 9y mai i ngā taha e rua.
\frac{2x}{2}=\frac{39-9y}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{39-9y}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
9y=39-2x
Tangohia te 2x mai i ngā taha e rua.
\frac{9y}{9}=\frac{39-2x}{9}
Whakawehea ngā taha e rua ki te 9.
y=\frac{39-2x}{9}
Mā te whakawehe ki te 9 ka wetekia te whakareanga ki te 9.
y=-\frac{2x}{9}+\frac{13}{3}
Whakawehe 39-2x ki te 9.
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