Whakaoti mō y
y=3-z
Whakaoti mō z
z=3-y
Tohaina
Kua tāruatia ki te papatopenga
6y=18-6z
Tangohia te 6z mai i ngā taha e rua.
\frac{6y}{6}=\frac{18-6z}{6}
Whakawehea ngā taha e rua ki te 6.
y=\frac{18-6z}{6}
Mā te whakawehe ki te 6 ka wetekia te whakareanga ki te 6.
y=3-z
Whakawehe 18-6z ki te 6.
6z=18-6y
Tangohia te 6y mai i ngā taha e rua.
\frac{6z}{6}=\frac{18-6y}{6}
Whakawehea ngā taha e rua ki te 6.
z=\frac{18-6y}{6}
Mā te whakawehe ki te 6 ka wetekia te whakareanga ki te 6.
z=3-y
Whakawehe 18-6y ki te 6.
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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