Whakaoti mō x
x=\frac{y}{2}+\frac{7}{4}
Whakaoti mō y
y=2x-\frac{7}{2}
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x=30+2y-23
Tangohia te 23 mai i ngā taha e rua.
4x=7+2y
Tangohia te 23 i te 30, ka 7.
4x=2y+7
He hanga arowhānui tō te whārite.
\frac{4x}{4}=\frac{2y+7}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{2y+7}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
x=\frac{y}{2}+\frac{7}{4}
Whakawehe 7+2y ki te 4.
30+2y=4x+23
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2y=4x+23-30
Tangohia te 30 mai i ngā taha e rua.
2y=4x-7
Tangohia te 30 i te 23, ka -7.
\frac{2y}{2}=\frac{4x-7}{2}
Whakawehea ngā taha e rua ki te 2.
y=\frac{4x-7}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
y=2x-\frac{7}{2}
Whakawehe 4x-7 ki te 2.
Ngā Tauira
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