Whakaoti mō x
x = -\frac{15}{7} = -2\frac{1}{7} \approx -2.142857143
Graph
Tohaina
Kua tāruatia ki te papatopenga
6x+15+x=0
Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te -2x-5.
7x+15=0
Pahekotia te 6x me x, ka 7x.
7x=-15
Tangohia te 15 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-15}{7}
Whakawehea ngā taha e rua ki te 7.
x=-\frac{15}{7}
Ka taea te hautanga \frac{-15}{7} te tuhi anō ko -\frac{15}{7} mā te tango i te tohu tōraro.
Ngā Tauira
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