Whakaoti mō b
b=-9
Tohaina
Kua tāruatia ki te papatopenga
91+3b+3b=37
Me tāpiri te 3b ki ngā taha e rua.
91+6b=37
Pahekotia te 3b me 3b, ka 6b.
6b=37-91
Tangohia te 91 mai i ngā taha e rua.
6b=-54
Tangohia te 91 i te 37, ka -54.
b=\frac{-54}{6}
Whakawehea ngā taha e rua ki te 6.
b=-9
Whakawehea te -54 ki te 6, kia riro ko -9.
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