Whakaoti mō b
b=-14.25
Tohaina
Kua tāruatia ki te papatopenga
1.5=2b+30
Pahekotia te b me b, ka 2b.
2b+30=1.5
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2b=1.5-30
Tangohia te 30 mai i ngā taha e rua.
2b=-28.5
Tangohia te 30 i te 1.5, ka -28.5.
b=\frac{-28.5}{2}
Whakawehea ngā taha e rua ki te 2.
b=\frac{-285}{20}
Whakarohaina te \frac{-28.5}{2} mā te whakarea i te taurunga me te tauraro ki te 10.
b=-\frac{57}{4}
Whakahekea te hautanga \frac{-285}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.
Ngā Tauira
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