Whakaoti mō x
x=30
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x+30=90
Pahekotia te x me x, ka 2x.
2x=90-30
Tangohia te 30 mai i ngā taha e rua.
2x=60
Tangohia te 30 i te 90, ka 60.
x=\frac{60}{2}
Whakawehea ngā taha e rua ki te 2.
x=30
Whakawehea te 60 ki te 2, kia riro ko 30.
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