Whakaoti mō x
x=-10
Graph
Tohaina
Kua tāruatia ki te papatopenga
10=-5x+8x+40
Whakamahia te āhuatanga tohatoha hei whakarea te 8 ki te x+5.
10=3x+40
Pahekotia te -5x me 8x, ka 3x.
3x+40=10
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
3x=10-40
Tangohia te 40 mai i ngā taha e rua.
3x=-30
Tangohia te 40 i te 10, ka -30.
x=\frac{-30}{3}
Whakawehea ngā taha e rua ki te 3.
x=-10
Whakawehea te -30 ki te 3, kia riro ko -10.
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