Whakaoti mō x
x=10
Graph
Tohaina
Kua tāruatia ki te papatopenga
15+2.5x-4x=0
Tangohia te 4x mai i ngā taha e rua.
15-1.5x=0
Pahekotia te 2.5x me -4x, ka -1.5x.
-1.5x=-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}{-1.5}
Whakawehea ngā taha e rua ki te -1.5.
x=\frac{-150}{-15}
Whakarohaina te \frac{-15}{-1.5} mā te whakarea i te taurunga me te tauraro ki te 10.
x=10
Whakawehea te -150 ki te -15, kia riro ko 10.
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