Whakaoti mō r
r=17
Tohaina
Kua tāruatia ki te papatopenga
34=2r
Me whakarea ngā taha e rua o te whārite ki te 42, arā, te tauraro pātahi he tino iti rawa te kitea o 42,21.
2r=34
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
r=\frac{34}{2}
Whakawehea ngā taha e rua ki te 2.
r=17
Whakawehea te 34 ki te 2, kia riro ko 17.
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