Whakaoti mō x
x = -\frac{15}{4} = -3\frac{3}{4} = -3.75
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x+5-8x=20
Tangohia te 8x mai i ngā taha e rua.
-4x+5=20
Pahekotia te 4x me -8x, ka -4x.
-4x=20-5
Tangohia te 5 mai i ngā taha e rua.
-4x=15
Tangohia te 5 i te 20, ka 15.
x=\frac{15}{-4}
Whakawehea ngā taha e rua ki te -4.
x=-\frac{15}{4}
Ka taea te hautanga \frac{15}{-4} te tuhi anō ko -\frac{15}{4} mā te tango i te tohu tōraro.
Ngā Tauira
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Whakarerekētanga
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