Whakaoti mō x_4
x_{4}=55
Tohaina
Kua tāruatia ki te papatopenga
x_{4}-3=52
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
x_{4}=52+3
Me tāpiri te 3 ki ngā taha e rua.
x_{4}=55
Tāpirihia te 52 ki te 3, ka 55.
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