Whakaoti mō x
x=3
Graph
Tohaina
Kua tāruatia ki te papatopenga
10x-3x-\left(-4\right)=4\left(x+1\right)+9
Hei kimi i te tauaro o 3x-4, kimihia te tauaro o ia taurangi.
10x-3x+4=4\left(x+1\right)+9
Ko te tauaro o -4 ko 4.
7x+4=4\left(x+1\right)+9
Pahekotia te 10x me -3x, ka 7x.
7x+4=4x+4+9
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x+1.
7x+4=4x+13
Tāpirihia te 4 ki te 9, ka 13.
7x+4-4x=13
Tangohia te 4x mai i ngā taha e rua.
3x+4=13
Pahekotia te 7x me -4x, ka 3x.
3x=13-4
Tangohia te 4 mai i ngā taha e rua.
3x=9
Tangohia te 4 i te 13, ka 9.
x=\frac{9}{3}
Whakawehea ngā taha e rua ki te 3.
x=3
Whakawehea te 9 ki te 3, kia riro ko 3.
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