Whakaoti mō b
b=-22
Tohaina
Kua tāruatia ki te papatopenga
20=5-b-7
Hei kimi i te tauaro o b+7, kimihia te tauaro o ia taurangi.
20=-2-b
Tangohia te 7 i te 5, ka -2.
-2-b=20
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-b=20+2
Me tāpiri te 2 ki ngā taha e rua.
-b=22
Tāpirihia te 20 ki te 2, ka 22.
b=-22
Me whakarea ngā taha e rua ki te -1.
Ngā Tauira
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Whakarerekētanga
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