Whakaoti mō x
x=15
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x+10-\left(3x-4\right)=29
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 2x+5.
4x+10-3x-\left(-4\right)=29
Hei kimi i te tauaro o 3x-4, kimihia te tauaro o ia taurangi.
4x+10-3x+4=29
Ko te tauaro o -4 ko 4.
x+10+4=29
Pahekotia te 4x me -3x, ka x.
x+14=29
Tāpirihia te 10 ki te 4, ka 14.
x=29-14
Tangohia te 14 mai i ngā taha e rua.
x=15
Tangohia te 14 i te 29, ka 15.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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Whakarerekētanga
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