Whakaoti mō x
x=-2y-2
Whakaoti mō y
y=-\frac{x}{2}-1
Graph
Tohaina
Kua tāruatia ki te papatopenga
-2x-4=4y
Me tāpiri te 4y ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
-2x=4y+4
Me tāpiri te 4 ki ngā taha e rua.
\frac{-2x}{-2}=\frac{4y+4}{-2}
Whakawehea ngā taha e rua ki te -2.
x=\frac{4y+4}{-2}
Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.
x=-2y-2
Whakawehe 4+4y ki te -2.
-4y-4=2x
Me tāpiri te 2x ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
-4y=2x+4
Me tāpiri te 4 ki ngā taha e rua.
\frac{-4y}{-4}=\frac{2x+4}{-4}
Whakawehea ngā taha e rua ki te -4.
y=\frac{2x+4}{-4}
Mā te whakawehe ki te -4 ka wetekia te whakareanga ki te -4.
y=-\frac{x}{2}-1
Whakawehe 4+2x ki te -4.
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