Whakaoti mō x
x=-20
Graph
Tohaina
Kua tāruatia ki te papatopenga
-67=2\left(2x-3\right)-\left(x+1\right)
Me whakarea ngā taha e rua o te whārite ki te 4, arā, te tauraro pātahi he tino iti rawa te kitea o 4,2.
-67=4x-6-\left(x+1\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 2x-3.
-67=4x-6-x-1
Hei kimi i te tauaro o x+1, kimihia te tauaro o ia taurangi.
-67=3x-6-1
Pahekotia te 4x me -x, ka 3x.
-67=3x-7
Tangohia te 1 i te -6, ka -7.
3x-7=-67
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
3x=-67+7
Me tāpiri te 7 ki ngā taha e rua.
3x=-60
Tāpirihia te -67 ki te 7, ka -60.
x=\frac{-60}{3}
Whakawehea ngā taha e rua ki te 3.
x=-20
Whakawehea te -60 ki te 3, kia riro ko -20.
Ngā Tauira
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