Whakaoti mō x
x=2
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-\left(3x-\left(4x-3x-\left(-1\right)-1\right)+3\right)=-5
Hei kimi i te tauaro o 3x-1, kimihia te tauaro o ia taurangi.
x-\left(3x-\left(4x-3x+1-1\right)+3\right)=-5
Ko te tauaro o -1 ko 1.
x-\left(3x-\left(x+1-1\right)+3\right)=-5
Pahekotia te 4x me -3x, ka x.
x-\left(3x-x+3\right)=-5
Tangohia te 1 i te 1, ka 0.
x-\left(2x+3\right)=-5
Pahekotia te 3x me -x, ka 2x.
x-2x-3=-5
Hei kimi i te tauaro o 2x+3, kimihia te tauaro o ia taurangi.
-x-3=-5
Pahekotia te x me -2x, ka -x.
-x=-5+3
Me tāpiri te 3 ki ngā taha e rua.
-x=-2
Tāpirihia te -5 ki te 3, ka -2.
x=2
Me whakarea ngā taha e rua ki te -1.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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