Tīpoka ki ngā ihirangi matua
Whakaoti mō x
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Tohaina

10-15x=3\left(2-3x\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 2-3x.
10-15x=6-9x
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te 2-3x.
10-15x+9x=6
Me tāpiri te 9x ki ngā taha e rua.
10-6x=6
Pahekotia te -15x me 9x, ka -6x.
-6x=6-10
Tangohia te 10 mai i ngā taha e rua.
-6x=-4
Tangohia te 10 i te 6, ka -4.
x=\frac{-4}{-6}
Whakawehea ngā taha e rua ki te -6.
x=\frac{2}{3}
Whakahekea te hautanga \frac{-4}{-6} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -2.