Whakaoti mō x
x=-8
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{30}{2}=7-x
Whakawehea ngā taha e rua ki te 2.
15=7-x
Whakawehea te 30 ki te 2, kia riro ko 15.
7-x=15
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-x=15-7
Tangohia te 7 mai i ngā taha e rua.
-x=8
Tangohia te 7 i te 15, ka 8.
x=-8
Me whakarea ngā taha e rua ki te -1.
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