Whakaoti mō f
f=-145
Tohaina
Kua tāruatia ki te papatopenga
-29\times 105=21f
Me whakarea ngā taha e rua o te whārite ki te 1218, arā, te tauraro pātahi he tino iti rawa te kitea o -42,58.
-3045=21f
Whakareatia te -29 ki te 105, ka -3045.
21f=-3045
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
f=\frac{-3045}{21}
Whakawehea ngā taha e rua ki te 21.
f=-145
Whakawehea te -3045 ki te 21, kia riro ko -145.
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