Whakaoti mō x
x=\frac{3}{4}=0.75
Graph
Tohaina
Kua tāruatia ki te papatopenga
x+7=5x+4
Tāpirihia te 3 ki te 1, ka 4.
x+7-5x=4
Tangohia te 5x mai i ngā taha e rua.
-4x+7=4
Pahekotia te x me -5x, ka -4x.
-4x=4-7
Tangohia te 7 mai i ngā taha e rua.
-4x=-3
Tangohia te 7 i te 4, ka -3.
x=\frac{-3}{-4}
Whakawehea ngā taha e rua ki te -4.
x=\frac{3}{4}
Ka taea te hautanga \frac{-3}{-4} te whakamāmā ki te \frac{3}{4} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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Whakarerekētanga
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