Whakaoti mō b
b=10
Tohaina
Kua tāruatia ki te papatopenga
-2b=-1.3-18.7
Tangohia te 18.7 mai i ngā taha e rua.
-2b=-20
Tangohia te 18.7 i te -1.3, ka -20.
b=\frac{-20}{-2}
Whakawehea ngā taha e rua ki te -2.
b=10
Whakawehea te -20 ki te -2, kia riro ko 10.
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