Whakaoti mō x
x=-16
Graph
Tohaina
Kua tāruatia ki te papatopenga
100-20-\left(-x\right)=64
Hei kimi i te tauaro o 20-x, kimihia te tauaro o ia taurangi.
100-20+x=64
Ko te tauaro o -x ko x.
80+x=64
Tangohia te 20 i te 100, ka 80.
x=64-80
Tangohia te 80 mai i ngā taha e rua.
x=-16
Tangohia te 80 i te 64, ka -16.
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