Whakaoti mō x
x=2
Graph
Tohaina
Kua tāruatia ki te papatopenga
-2-\left(-x\right)-\left(2-x\right)=0
Hei kimi i te tauaro o 2-x, kimihia te tauaro o ia taurangi.
-2+x-\left(2-x\right)=0
Ko te tauaro o -x ko x.
-2+x-2-\left(-x\right)=0
Hei kimi i te tauaro o 2-x, kimihia te tauaro o ia taurangi.
-2+x-2+x=0
Ko te tauaro o -x ko x.
-4+x+x=0
Tangohia te 2 i te -2, ka -4.
-4+2x=0
Pahekotia te x me x, ka 2x.
2x=4
Me tāpiri te 4 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{4}{2}
Whakawehea ngā taha e rua ki te 2.
x=2
Whakawehea te 4 ki te 2, kia riro ko 2.
Ngā Tauira
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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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