Whakaoti mō x
x=-2
Graph
Tohaina
Kua tāruatia ki te papatopenga
5\times 3=2x+19
Me whakarea ngā taha e rua ki te 3.
15=2x+19
Whakareatia te 5 ki te 3, ka 15.
2x+19=15
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2x=15-19
Tangohia te 19 mai i ngā taha e rua.
2x=-4
Tangohia te 19 i te 15, ka -4.
x=\frac{-4}{2}
Whakawehea ngā taha e rua ki te 2.
x=-2
Whakawehea te -4 ki te 2, kia riro ko -2.
Ngā Tauira
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