Whakaoti mō k
k = -\frac{15}{8} = -1\frac{7}{8} = -1.875
Tohaina
Kua tāruatia ki te papatopenga
2+2k=-28-14k
Whakareatia ngā taha e rua o te whārite ki te 7.
2+2k+14k=-28
Me tāpiri te 14k ki ngā taha e rua.
2+16k=-28
Pahekotia te 2k me 14k, ka 16k.
16k=-28-2
Tangohia te 2 mai i ngā taha e rua.
16k=-30
Tangohia te 2 i te -28, ka -30.
k=\frac{-30}{16}
Whakawehea ngā taha e rua ki te 16.
k=-\frac{15}{8}
Whakahekea te hautanga \frac{-30}{16} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
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