Whakaoti mō x
x=\frac{7-7y}{2}
Whakaoti mō y
y=-\frac{2x}{7}+1
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x=7-7y
Tangohia te 7y mai i ngā taha e rua.
\frac{2x}{2}=\frac{7-7y}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{7-7y}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
7y=7-2x
Tangohia te 2x mai i ngā taha e rua.
\frac{7y}{7}=\frac{7-2x}{7}
Whakawehea ngā taha e rua ki te 7.
y=\frac{7-2x}{7}
Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.
y=-\frac{2x}{7}+1
Whakawehe 7-2x ki te 7.
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