Whakaoti mō x
x=6
Graph
Tohaina
Kua tāruatia ki te papatopenga
16=3x-3-\left(x-7\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x-1.
16=3x-3-x-\left(-7\right)
Hei kimi i te tauaro o x-7, kimihia te tauaro o ia taurangi.
16=3x-3-x+7
Ko te tauaro o -7 ko 7.
16=2x-3+7
Pahekotia te 3x me -x, ka 2x.
16=2x+4
Tāpirihia te -3 ki te 7, ka 4.
2x+4=16
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2x=16-4
Tangohia te 4 mai i ngā taha e rua.
2x=12
Tangohia te 4 i te 16, ka 12.
x=\frac{12}{2}
Whakawehea ngā taha e rua ki te 2.
x=6
Whakawehea te 12 ki te 2, kia riro ko 6.
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