Whakaoti mō x
x=18
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x-7+x+7=54
Pahekotia te x me x, ka 2x.
3x-7+7=54
Pahekotia te 2x me x, ka 3x.
3x=54
Tāpirihia te -7 ki te 7, ka 0.
x=\frac{54}{3}
Whakawehea ngā taha e rua ki te 3.
x=18
Whakawehea te 54 ki te 3, kia riro ko 18.
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]
whārite Simultaneous
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Whakarerekētanga
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