Whakaoti mō x
x=-\frac{1}{7}\approx -0.142857143
Graph
Tohaina
Kua tāruatia ki te papatopenga
x\times 5+3=-16x
Tē taea kia ōrite te tāupe x ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te x.
x\times 5+3+16x=0
Me tāpiri te 16x ki ngā taha e rua.
21x+3=0
Pahekotia te x\times 5 me 16x, ka 21x.
21x=-3
Tangohia te 3 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-3}{21}
Whakawehea ngā taha e rua ki te 21.
x=-\frac{1}{7}
Whakahekea te hautanga \frac{-3}{21} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.
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