Whakaoti mō x
x = -\frac{125}{19} = -6\frac{11}{19} \approx -6.578947368
Graph
Tohaina
Kua tāruatia ki te papatopenga
x+5=0.24x
Pahekotia te 0.7x me 0.3x, ka x.
x+5-0.24x=0
Tangohia te 0.24x mai i ngā taha e rua.
0.76x+5=0
Pahekotia te x me -0.24x, ka 0.76x.
0.76x=-5
Tangohia te 5 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-5}{0.76}
Whakawehea ngā taha e rua ki te 0.76.
x=\frac{-500}{76}
Whakarohaina te \frac{-5}{0.76} mā te whakarea i te taurunga me te tauraro ki te 100.
x=-\frac{125}{19}
Whakahekea te hautanga \frac{-500}{76} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.
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