Whakaoti mō x, y, z, a, b
b=7
Tohaina
Kua tāruatia ki te papatopenga
-x=5-12
Whakaarohia te whārite tuatahi. Tangohia te 12 mai i ngā taha e rua.
-x=-7
Tangohia te 12 i te 5, ka -7.
x=\frac{-7}{-1}
Whakawehea ngā taha e rua ki te -1.
x=7
Ka taea te hautanga \frac{-7}{-1} te whakamāmā ki te 7 mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.
x=7 y=7 z=7 a=7 b=7
Kua oti te pūnaha te whakatau.
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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