Whakaoti mō x
x=70
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x+40=180
Pahekotia te x me x, ka 2x.
2x=180-40
Tangohia te 40 mai i ngā taha e rua.
2x=140
Tangohia te 40 i te 180, ka 140.
x=\frac{140}{2}
Whakawehea ngā taha e rua ki te 2.
x=70
Whakawehea te 140 ki te 2, kia riro ko 70.
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