10 ( 7.8 y ) = 10 ( 6.2 y - 1
Whakaoti mō y
y=-0.625
Graph
Tohaina
Kua tāruatia ki te papatopenga
7.8y=6.2y-1
Me whakakore te 10 ki ngā taha e rua.
7.8y-6.2y=-1
Tangohia te 6.2y mai i ngā taha e rua.
1.6y=-1
Pahekotia te 7.8y me -6.2y, ka 1.6y.
y=\frac{-1}{1.6}
Whakawehea ngā taha e rua ki te 1.6.
y=\frac{-10}{16}
Whakarohaina te \frac{-1}{1.6} mā te whakarea i te taurunga me te tauraro ki te 10.
y=-\frac{5}{8}
Whakahekea te hautanga \frac{-10}{16} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
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