Whakaoti mō x
x=15y+\frac{23}{2}
Whakaoti mō y
y=\frac{x}{15}-\frac{23}{30}
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x-5-30y=18
Whakareatia ngā taha e rua o te whārite ki te 3.
2x-30y=18+5
Me tāpiri te 5 ki ngā taha e rua.
2x-30y=23
Tāpirihia te 18 ki te 5, ka 23.
2x=23+30y
Me tāpiri te 30y ki ngā taha e rua.
2x=30y+23
He hanga arowhānui tō te whārite.
\frac{2x}{2}=\frac{30y+23}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{30y+23}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
x=15y+\frac{23}{2}
Whakawehe 23+30y ki te 2.
2x-5-30y=18
Whakareatia ngā taha e rua o te whārite ki te 3.
-5-30y=18-2x
Tangohia te 2x mai i ngā taha e rua.
-30y=18-2x+5
Me tāpiri te 5 ki ngā taha e rua.
-30y=23-2x
Tāpirihia te 18 ki te 5, ka 23.
\frac{-30y}{-30}=\frac{23-2x}{-30}
Whakawehea ngā taha e rua ki te -30.
y=\frac{23-2x}{-30}
Mā te whakawehe ki te -30 ka wetekia te whakareanga ki te -30.
y=\frac{x}{15}-\frac{23}{30}
Whakawehe 23-2x ki te -30.
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