Whakaoti mō x
x = \frac{53}{6} = 8\frac{5}{6} \approx 8.833333333
Graph
Tohaina
Kua tāruatia ki te papatopenga
18x+6+15=180
Pahekotia te 3x me 15x, ka 18x.
18x+21=180
Tāpirihia te 6 ki te 15, ka 21.
18x=180-21
Tangohia te 21 mai i ngā taha e rua.
18x=159
Tangohia te 21 i te 180, ka 159.
x=\frac{159}{18}
Whakawehea ngā taha e rua ki te 18.
x=\frac{53}{6}
Whakahekea te hautanga \frac{159}{18} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.
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