Whakaoti mō x
x=20
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x=80-40
Tangohia te 40 mai i ngā taha e rua.
2x=40
Tangohia te 40 i te 80, ka 40.
x=\frac{40}{2}
Whakawehea ngā taha e rua ki te 2.
x=20
Whakawehea te 40 ki te 2, kia riro ko 20.
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