Tīpoka ki ngā ihirangi matua
Whakaoti mō x
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Tohaina

0.3x=40000
Pahekotia te x me -0.7x, ka 0.3x.
x=\frac{40000}{0.3}
Whakawehea ngā taha e rua ki te 0.3.
x=\frac{400000}{3}
Whakarohaina te \frac{40000}{0.3} mā te whakarea i te taurunga me te tauraro ki te 10.