Whakaoti mō y
y = \frac{15}{2} = 7\frac{1}{2} = 7.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
-12y+13=-77-0y
Whakareatia te 0 ki te 2, ka 0.
-12y+13=-77-0
Ko te tau i whakarea ki te kore ka hua ko te kore.
-12y+13=-77
Tangohia te 0 i te -77, ka -77.
-12y=-77-13
Tangohia te 13 mai i ngā taha e rua.
-12y=-90
Tangohia te 13 i te -77, ka -90.
y=\frac{-90}{-12}
Whakawehea ngā taha e rua ki te -12.
y=\frac{15}{2}
Whakahekea te hautanga \frac{-90}{-12} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -6.
Ngā Tauira
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