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

Tohaina

y=2x-2
Tangohia te 7 i te 5, ka -2.
2x-2=y
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2x=y+2
Me tāpiri te 2 ki ngā taha e rua.
\frac{2x}{2}=\frac{y+2}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{y+2}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
x=\frac{y}{2}+1
Whakawehe y+2 ki te 2.
y=2x-2
Tangohia te 7 i te 5, ka -2.