Whakaoti mō x
x = -\frac{5}{2} = -2\frac{1}{2} = -2.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
72+6x+14x=22
Me tāpiri te 14x ki ngā taha e rua.
72+20x=22
Pahekotia te 6x me 14x, ka 20x.
20x=22-72
Tangohia te 72 mai i ngā taha e rua.
20x=-50
Tangohia te 72 i te 22, ka -50.
x=\frac{-50}{20}
Whakawehea ngā taha e rua ki te 20.
x=-\frac{5}{2}
Whakahekea te hautanga \frac{-50}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 10.
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