Whakaoti mō X
X=\frac{3}{7}\approx 0.428571429
Tohaina
Kua tāruatia ki te papatopenga
2X+3-9X=0
Tangohia te 9X mai i ngā taha e rua.
-7X+3=0
Pahekotia te 2X me -9X, ka -7X.
-7X=-3
Tangohia te 3 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
X=\frac{-3}{-7}
Whakawehea ngā taha e rua ki te -7.
X=\frac{3}{7}
Ka taea te hautanga \frac{-3}{-7} te whakamāmā ki te \frac{3}{7} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.
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