120 \% x - x = 08
Whakaoti mō x
x=0
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{6}{5}x-x=0\times 8
Whakahekea te hautanga \frac{120}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.
\frac{1}{5}x=0\times 8
Pahekotia te \frac{6}{5}x me -x, ka \frac{1}{5}x.
\frac{1}{5}x=0
Whakareatia te 0 ki te 8, ka 0.
x=0
He ōrite te hua o ngā tau e rua ki 0 ina 0 tētahi o rāua te iti rawa. Tātemea kāore te \frac{1}{5} e ōrite ki 0, me ōrite pū te x ki 0.
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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