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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

72+118=20x+10
Whakareatia ngā taha e rua o te whārite ki te 2.
190=20x+10
Tāpirihia te 72 ki te 118, ka 190.
20x+10=190
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
20x=190-10
Tangohia te 10 mai i ngā taha e rua.
20x=180
Tangohia te 10 i te 190, ka 180.
x=\frac{180}{20}
Whakawehea ngā taha e rua ki te 20.
x=9
Whakawehea te 180 ki te 20, kia riro ko 9.