Whakaoti mō a
a=\frac{2b+c}{5}
Whakaoti mō b
b=\frac{5a-c}{2}
Tohaina
Kua tāruatia ki te papatopenga
9a-2b-4a=c
Tangohia te 4a mai i ngā taha e rua.
5a-2b=c
Pahekotia te 9a me -4a, ka 5a.
5a=c+2b
Me tāpiri te 2b ki ngā taha e rua.
5a=2b+c
He hanga arowhānui tō te whārite.
\frac{5a}{5}=\frac{2b+c}{5}
Whakawehea ngā taha e rua ki te 5.
a=\frac{2b+c}{5}
Mā te whakawehe ki te 5 ka wetekia te whakareanga ki te 5.
-2b=c+4a-9a
Tangohia te 9a mai i ngā taha e rua.
-2b=c-5a
Pahekotia te 4a me -9a, ka -5a.
\frac{-2b}{-2}=\frac{c-5a}{-2}
Whakawehea ngā taha e rua ki te -2.
b=\frac{c-5a}{-2}
Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.
b=\frac{5a-c}{2}
Whakawehe c-5a ki te -2.
Ngā Tauira
whārite tapawhā
{ 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]
whārite Simultaneous
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Whakarerekētanga
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Whakaurunga
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Ngā Tepe
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