Whakaoti mō y
y = \frac{4}{3} = 1\frac{1}{3} \approx 1.333333333
Graph
Tohaina
Kua tāruatia ki te papatopenga
-3+21y=25
Pahekotia te 6y me 15y, ka 21y.
21y=25+3
Me tāpiri te 3 ki ngā taha e rua.
21y=28
Tāpirihia te 25 ki te 3, ka 28.
y=\frac{28}{21}
Whakawehea ngā taha e rua ki te 21.
y=\frac{4}{3}
Whakahekea te hautanga \frac{28}{21} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 7.
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