Whakaoti mō b
b=100
Tohaina
Kua tāruatia ki te papatopenga
-2b=-13-187
Tangohia te 187 mai i ngā taha e rua.
-2b=-200
Tangohia te 187 i te -13, ka -200.
b=\frac{-200}{-2}
Whakawehea ngā taha e rua ki te -2.
b=100
Whakawehea te -200 ki te -2, kia riro ko 100.
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