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Whakaoti mō y
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Whakaoti mō x
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

-4y=9-x
Tangohia te x mai i ngā taha e rua.
\frac{-4y}{-4}=\frac{9-x}{-4}
Whakawehea ngā taha e rua ki te -4.
y=\frac{9-x}{-4}
Mā te whakawehe ki te -4 ka wetekia te whakareanga ki te -4.
y=\frac{x-9}{4}
Whakawehe 9-x ki te -4.
x=9+4y
Me tāpiri te 4y ki ngā taha e rua.