Whakaoti mō x
x=-\frac{7y}{4}-\frac{7}{2}
Whakaoti mō y
y=-\frac{4x}{7}-2
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x+8y=y-5-9
Tangohia te 9 mai i ngā taha e rua.
4x+8y=y-14
Tangohia te 9 i te -5, ka -14.
4x=y-14-8y
Tangohia te 8y mai i ngā taha e rua.
4x=-7y-14
Pahekotia te y me -8y, ka -7y.
\frac{4x}{4}=\frac{-7y-14}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{-7y-14}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
x=-\frac{7y}{4}-\frac{7}{2}
Whakawehe -7y-14 ki te 4.
4x+9+8y-y=-5
Tangohia te y mai i ngā taha e rua.
4x+9+7y=-5
Pahekotia te 8y me -y, ka 7y.
9+7y=-5-4x
Tangohia te 4x mai i ngā taha e rua.
7y=-5-4x-9
Tangohia te 9 mai i ngā taha e rua.
7y=-14-4x
Tangohia te 9 i te -5, ka -14.
7y=-4x-14
He hanga arowhānui tō te whārite.
\frac{7y}{7}=\frac{-4x-14}{7}
Whakawehea ngā taha e rua ki te 7.
y=\frac{-4x-14}{7}
Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.
y=-\frac{4x}{7}-2
Whakawehe -14-4x ki te 7.
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