Whakaoti mō x
x=-\frac{1}{5}=-0.2
Graph
Tohaina
Kua tāruatia ki te papatopenga
10-20x+15x=11
Me tāpiri te 15x ki ngā taha e rua.
10-5x=11
Pahekotia te -20x me 15x, ka -5x.
-5x=11-10
Tangohia te 10 mai i ngā taha e rua.
-5x=1
Tangohia te 10 i te 11, ka 1.
x=\frac{1}{-5}
Whakawehea ngā taha e rua ki te -5.
x=-\frac{1}{5}
Ka taea te hautanga \frac{1}{-5} te tuhi anō ko -\frac{1}{5} mā te tango i te tohu tōraro.
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