Tīpoka ki ngā ihirangi matua
Whakaoti mō x
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

4-7x-8x=-1
Tangohia te 8x mai i ngā taha e rua.
4-15x=-1
Pahekotia te -7x me -8x, ka -15x.
-15x=-1-4
Tangohia te 4 mai i ngā taha e rua.
-15x=-5
Tangohia te 4 i te -1, ka -5.
x=\frac{-5}{-15}
Whakawehea ngā taha e rua ki te -15.
x=\frac{1}{3}
Whakahekea te hautanga \frac{-5}{-15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -5.