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Whakaoti mō x
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Tohaina

x-4x+8=2\left(x-1\right)
Whakamahia te āhuatanga tohatoha hei whakarea te -4 ki te x-2.
-3x+8=2\left(x-1\right)
Pahekotia te x me -4x, ka -3x.
-3x+8=2x-2
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x-1.
-3x+8-2x=-2
Tangohia te 2x mai i ngā taha e rua.
-5x+8=-2
Pahekotia te -3x me -2x, ka -5x.
-5x=-2-8
Tangohia te 8 mai i ngā taha e rua.
-5x=-10
Tangohia te 8 i te -2, ka -10.
x=\frac{-10}{-5}
Whakawehea ngā taha e rua ki te -5.
x=2
Whakawehea te -10 ki te -5, kia riro ko 2.