Whakaoti mō x
x=\frac{7y-20}{3}
Whakaoti mō y
y=\frac{3x+20}{7}
Graph
Tohaina
Kua tāruatia ki te papatopenga
3x=-20+7y
Me tāpiri te 7y ki ngā taha e rua.
3x=7y-20
He hanga arowhānui tō te whārite.
\frac{3x}{3}=\frac{7y-20}{3}
Whakawehea ngā taha e rua ki te 3.
x=\frac{7y-20}{3}
Mā te whakawehe ki te 3 ka wetekia te whakareanga ki te 3.
-7y=-20-3x
Tangohia te 3x mai i ngā taha e rua.
-7y=-3x-20
He hanga arowhānui tō te whārite.
\frac{-7y}{-7}=\frac{-3x-20}{-7}
Whakawehea ngā taha e rua ki te -7.
y=\frac{-3x-20}{-7}
Mā te whakawehe ki te -7 ka wetekia te whakareanga ki te -7.
y=\frac{3x+20}{7}
Whakawehe -20-3x ki te -7.
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