Whakaoti mō x
x=\frac{y}{4}
Whakaoti mō y
y=4x
Graph
Tohaina
Kua tāruatia ki te papatopenga
-2\times 2x+y=-2\times 0
Me whakarea ngā taha e rua o te whārite ki te 10, arā, te tauraro pātahi he tino iti rawa te kitea o 5,10.
-4x+y=-2\times 0
Whakareatia te -2 ki te 2, ka -4.
-4x+y=0
Whakareatia te -2 ki te 0, ka 0.
-4x=-y
Tangohia te y mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
\frac{-4x}{-4}=-\frac{y}{-4}
Whakawehea ngā taha e rua ki te -4.
x=-\frac{y}{-4}
Mā te whakawehe ki te -4 ka wetekia te whakareanga ki te -4.
x=\frac{y}{4}
Whakawehe -y ki te -4.
-2\times 2x+y=-2\times 0
Me whakarea ngā taha e rua o te whārite ki te 10, arā, te tauraro pātahi he tino iti rawa te kitea o 5,10.
-4x+y=-2\times 0
Whakareatia te -2 ki te 2, ka -4.
-4x+y=0
Whakareatia te -2 ki te 0, ka 0.
y=4x
Me tāpiri te 4x ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
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