Whakaoti mō x
x=-2y-\frac{5}{2}
Whakaoti mō y
y=-\frac{x}{2}-\frac{5}{4}
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x=-10-8y
Tangohia te 8y mai i ngā taha e rua.
4x=-8y-10
He hanga arowhānui tō te whārite.
\frac{4x}{4}=\frac{-8y-10}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{-8y-10}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
x=-2y-\frac{5}{2}
Whakawehe -10-8y ki te 4.
8y=-10-4x
Tangohia te 4x mai i ngā taha e rua.
8y=-4x-10
He hanga arowhānui tō te whārite.
\frac{8y}{8}=\frac{-4x-10}{8}
Whakawehea ngā taha e rua ki te 8.
y=\frac{-4x-10}{8}
Mā te whakawehe ki te 8 ka wetekia te whakareanga ki te 8.
y=-\frac{x}{2}-\frac{5}{4}
Whakawehe -10-4x ki te 8.
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]
whārite Simultaneous
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\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}