Whakaoti mō x
x=\frac{1}{5}-y
Whakaoti mō y
y=\frac{1}{5}-x
Graph
Tohaina
Kua tāruatia ki te papatopenga
10x-20+10y=-25+7
Tangohia te 5 i te -20, ka -25.
10x-20+10y=-18
Tāpirihia te -25 ki te 7, ka -18.
10x+10y=-18+20
Me tāpiri te 20 ki ngā taha e rua.
10x+10y=2
Tāpirihia te -18 ki te 20, ka 2.
10x=2-10y
Tangohia te 10y mai i ngā taha e rua.
\frac{10x}{10}=\frac{2-10y}{10}
Whakawehea ngā taha e rua ki te 10.
x=\frac{2-10y}{10}
Mā te whakawehe ki te 10 ka wetekia te whakareanga ki te 10.
x=\frac{1}{5}-y
Whakawehe 2-10y ki te 10.
10x-20+10y=-25+7
Tangohia te 5 i te -20, ka -25.
10x-20+10y=-18
Tāpirihia te -25 ki te 7, ka -18.
-20+10y=-18-10x
Tangohia te 10x mai i ngā taha e rua.
10y=-18-10x+20
Me tāpiri te 20 ki ngā taha e rua.
10y=2-10x
Tāpirihia te -18 ki te 20, ka 2.
\frac{10y}{10}=\frac{2-10x}{10}
Whakawehea ngā taha e rua ki te 10.
y=\frac{2-10x}{10}
Mā te whakawehe ki te 10 ka wetekia te whakareanga ki te 10.
y=\frac{1}{5}-x
Whakawehe 2-10x ki te 10.
Ngā Tauira
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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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