Whakaoti mō x
x = \frac{100}{3} = 33\frac{1}{3} \approx 33.333333333
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x+40+40+x=180
Pahekotia te x me x, ka 2x.
2x+80+x=180
Tāpirihia te 40 ki te 40, ka 80.
3x+80=180
Pahekotia te 2x me x, ka 3x.
3x=180-80
Tangohia te 80 mai i ngā taha e rua.
3x=100
Tangohia te 80 i te 180, ka 100.
x=\frac{100}{3}
Whakawehea ngā taha e rua ki te 3.
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