Whakaoti mō x
x=\frac{8}{11}\approx 0.727272727
Graph
Tohaina
Kua tāruatia ki te papatopenga
7x-2.1-1.5x=1.9
Tangohia te 1.5x mai i ngā taha e rua.
5.5x-2.1=1.9
Pahekotia te 7x me -1.5x, ka 5.5x.
5.5x=1.9+2.1
Me tāpiri te 2.1 ki ngā taha e rua.
5.5x=4
Tāpirihia te 1.9 ki te 2.1, ka 4.
x=\frac{4}{5.5}
Whakawehea ngā taha e rua ki te 5.5.
x=\frac{40}{55}
Whakarohaina te \frac{4}{5.5} mā te whakarea i te taurunga me te tauraro ki te 10.
x=\frac{8}{11}
Whakahekea te hautanga \frac{40}{55} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.
Ngā Tauira
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