Whakaoti mō x
x = -\frac{21}{2} = -10\frac{1}{2} = -10.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
9-2x=30
Whakareatia ngā taha e rua o te whārite ki te 3.
-2x=30-9
Tangohia te 9 mai i ngā taha e rua.
-2x=21
Tangohia te 9 i te 30, ka 21.
x=\frac{21}{-2}
Whakawehea ngā taha e rua ki te -2.
x=-\frac{21}{2}
Ka taea te hautanga \frac{21}{-2} te tuhi anō ko -\frac{21}{2} mā te tango i te tohu tōraro.
Ngā Tauira
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