Whakaoti mō x
x=220
Graph
Tohaina
Kua tāruatia ki te papatopenga
15x+900=4200
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
15x=4200-900
Tangohia te 900 mai i ngā taha e rua.
15x=3300
Tangohia te 900 i te 4200, ka 3300.
x=\frac{3300}{15}
Whakawehea ngā taha e rua ki te 15.
x=220
Whakawehea te 3300 ki te 15, kia riro ko 220.
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