Whakaoti mō x
x=-\frac{y}{9}-2
Whakaoti mō y
y=-9x-18
Graph
Tohaina
Kua tāruatia ki te papatopenga
9x+18=-y
Tangohia te y mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
9x=-y-18
Tangohia te 18 mai i ngā taha e rua.
\frac{9x}{9}=\frac{-y-18}{9}
Whakawehea ngā taha e rua ki te 9.
x=\frac{-y-18}{9}
Mā te whakawehe ki te 9 ka wetekia te whakareanga ki te 9.
x=-\frac{y}{9}-2
Whakawehe -y-18 ki te 9.
y+18=-9x
Tangohia te 9x mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
y=-9x-18
Tangohia te 18 mai i ngā taha e rua.
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