Whakaoti mō x
x=\frac{-5y-45}{2}
Whakaoti mō y
y=-\frac{2x}{5}-9
Graph
Tohaina
Kua tāruatia ki te papatopenga
-\frac{2}{5}x-9=y
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-\frac{2}{5}x=y+9
Me tāpiri te 9 ki ngā taha e rua.
\frac{-\frac{2}{5}x}{-\frac{2}{5}}=\frac{y+9}{-\frac{2}{5}}
Whakawehea ngā taha e rua o te whārite ki te -\frac{2}{5}, he ōrite ki te whakarea i ngā taha e rua ki te tau huripoki o te hautanga.
x=\frac{y+9}{-\frac{2}{5}}
Mā te whakawehe ki te -\frac{2}{5} ka wetekia te whakareanga ki te -\frac{2}{5}.
x=\frac{-5y-45}{2}
Whakawehe y+9 ki te -\frac{2}{5} mā te whakarea y+9 ki te tau huripoki o -\frac{2}{5}.
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