Whakaoti mō x
x = -\frac{100}{3} = -33\frac{1}{3} \approx -33.333333333
Graph
Tohaina
Kua tāruatia ki te papatopenga
50000+300x-3000x=140000
Tangohia te 3000x mai i ngā taha e rua.
50000-2700x=140000
Pahekotia te 300x me -3000x, ka -2700x.
-2700x=140000-50000
Tangohia te 50000 mai i ngā taha e rua.
-2700x=90000
Tangohia te 50000 i te 140000, ka 90000.
x=\frac{90000}{-2700}
Whakawehea ngā taha e rua ki te -2700.
x=-\frac{100}{3}
Whakahekea te hautanga \frac{90000}{-2700} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 900.
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