Whakaoti mō x
x=\frac{z+3}{5}
Whakaoti mō z
z=5x-3
Tohaina
Kua tāruatia ki te papatopenga
z=6x-3-x
Pahekotia te 2x me 4x, ka 6x.
6x-3-x=z
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
6x-x=z+3
Me tāpiri te 3 ki ngā taha e rua.
5x=z+3
Pahekotia te 6x me -x, ka 5x.
\frac{5x}{5}=\frac{z+3}{5}
Whakawehea ngā taha e rua ki te 5.
x=\frac{z+3}{5}
Mā te whakawehe ki te 5 ka wetekia te whakareanga ki te 5.
z=6x-3-x
Pahekotia te 2x me 4x, ka 6x.
z=5x-3
Pahekotia te 6x me -x, ka 5x.
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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Whakaurunga
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