Whakaoti mō x
x=-9
Graph
Tohaina
Kua tāruatia ki te papatopenga
15-12=7-\left(-5\right)+x
Pahekotia te -x me x, ka 0.
3=7-\left(-5\right)+x
Tangohia te 12 i te 15, ka 3.
3=7+5+x
Ko te tauaro o -5 ko 5.
3=12+x
Tāpirihia te 7 ki te 5, ka 12.
12+x=3
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
x=3-12
Tangohia te 12 mai i ngā taha e rua.
x=-9
Tangohia te 12 i te 3, ka -9.
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