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Whakaoti mō x
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

28-3x-4=2\left(x+6\right)+x
Hei kimi i te tauaro o 3x+4, kimihia te tauaro o ia taurangi.
24-3x=2\left(x+6\right)+x
Tangohia te 4 i te 28, ka 24.
24-3x=2x+12+x
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x+6.
24-3x=3x+12
Pahekotia te 2x me x, ka 3x.
24-3x-3x=12
Tangohia te 3x mai i ngā taha e rua.
24-6x=12
Pahekotia te -3x me -3x, ka -6x.
-6x=12-24
Tangohia te 24 mai i ngā taha e rua.
-6x=-12
Tangohia te 24 i te 12, ka -12.
x=\frac{-12}{-6}
Whakawehea ngā taha e rua ki te -6.
x=2
Whakawehea te -12 ki te -6, kia riro ko 2.