Whakaoti mō x
x=\frac{y+7}{5}
Whakaoti mō y
y=5x-7
Graph
Tohaina
Kua tāruatia ki te papatopenga
-5x=-7-y
Tangohia te y mai i ngā taha e rua.
-5x=-y-7
He hanga arowhānui tō te whārite.
\frac{-5x}{-5}=\frac{-y-7}{-5}
Whakawehea ngā taha e rua ki te -5.
x=\frac{-y-7}{-5}
Mā te whakawehe ki te -5 ka wetekia te whakareanga ki te -5.
x=\frac{y+7}{5}
Whakawehe -7-y ki te -5.
y=-7+5x
Me tāpiri te 5x ki ngā taha e rua.
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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