Whakaoti mō x
x=-\frac{3y}{7}+3
Whakaoti mō y
y=-\frac{7x}{3}+7
Graph
Tohaina
Kua tāruatia ki te papatopenga
7x=21-3y
Tangohia te 3y mai i ngā taha e rua.
\frac{7x}{7}=\frac{21-3y}{7}
Whakawehea ngā taha e rua ki te 7.
x=\frac{21-3y}{7}
Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.
x=-\frac{3y}{7}+3
Whakawehe 21-3y ki te 7.
3y=21-7x
Tangohia te 7x mai i ngā taha e rua.
\frac{3y}{3}=\frac{21-7x}{3}
Whakawehea ngā taha e rua ki te 3.
y=\frac{21-7x}{3}
Mā te whakawehe ki te 3 ka wetekia te whakareanga ki te 3.
y=-\frac{7x}{3}+7
Whakawehe 21-7x ki te 3.
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