Whakaoti mō x
x=\frac{31-7y}{5}
Whakaoti mō y
y=\frac{31-5x}{7}
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x=31-7y
Tangohia te 7y mai i ngā taha e rua.
\frac{5x}{5}=\frac{31-7y}{5}
Whakawehea ngā taha e rua ki te 5.
x=\frac{31-7y}{5}
Mā te whakawehe ki te 5 ka wetekia te whakareanga ki te 5.
7y=31-5x
Tangohia te 5x mai i ngā taha e rua.
\frac{7y}{7}=\frac{31-5x}{7}
Whakawehea ngā taha e rua ki te 7.
y=\frac{31-5x}{7}
Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.
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