Whakaoti mō x
x=\frac{4-y}{15}
Whakaoti mō y
y=4-15x
Graph
Tohaina
Kua tāruatia ki te papatopenga
4-15x=y
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-15x=y-4
Tangohia te 4 mai i ngā taha e rua.
\frac{-15x}{-15}=\frac{y-4}{-15}
Whakawehea ngā taha e rua ki te -15.
x=\frac{y-4}{-15}
Mā te whakawehe ki te -15 ka wetekia te whakareanga ki te -15.
x=\frac{4-y}{15}
Whakawehe y-4 ki te -15.
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