Whakaoti mō b
b=20
Tohaina
Kua tāruatia ki te papatopenga
3b+2+b=82
Pahekotia te 2b me b, ka 3b.
4b+2=82
Pahekotia te 3b me b, ka 4b.
4b=82-2
Tangohia te 2 mai i ngā taha e rua.
4b=80
Tangohia te 2 i te 82, ka 80.
b=\frac{80}{4}
Whakawehea ngā taha e rua ki te 4.
b=20
Whakawehea te 80 ki te 4, kia riro ko 20.
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