Whakaoti mō x
x=\frac{-y-1}{2}
Whakaoti mō y
y=-2x-1
Graph
Tohaina
Kua tāruatia ki te papatopenga
y=-2x-1
Tātaihia te 1 mā te pū o 2, kia riro ko 1.
-2x-1=y
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-2x=y+1
Me tāpiri te 1 ki ngā taha e rua.
\frac{-2x}{-2}=\frac{y+1}{-2}
Whakawehea ngā taha e rua ki te -2.
x=\frac{y+1}{-2}
Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.
x=\frac{-y-1}{2}
Whakawehe y+1 ki te -2.
y=-2x-1
Tātaihia te 1 mā te pū o 2, kia riro ko 1.
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