Whakaoti mō j
j=6
Tohaina
Kua tāruatia ki te papatopenga
5j+3-2j=21
Tangohia te 2j mai i ngā taha e rua.
3j+3=21
Pahekotia te 5j me -2j, ka 3j.
3j=21-3
Tangohia te 3 mai i ngā taha e rua.
3j=18
Tangohia te 3 i te 21, ka 18.
j=\frac{18}{3}
Whakawehea ngā taha e rua ki te 3.
j=6
Whakawehea te 18 ki te 3, kia riro ko 6.
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