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Whakaoti mō y
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

y-20=-42
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
y=-42+20
Me tāpiri te 20 ki ngā taha e rua.
y=-22
Tāpirihia te -42 ki te 20, ka -22.