Tīpoka ki ngā ihirangi matua
Whakaoti mō x
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Tohaina

-7x+15=0
Pahekotia te x me -8x, ka -7x.
-7x=-15
Tangohia te 15 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-15}{-7}
Whakawehea ngā taha e rua ki te -7.
x=\frac{15}{7}
Ka taea te hautanga \frac{-15}{-7} te whakamāmā ki te \frac{15}{7} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.