Whakaoti mō y
y=0.45
Graph
Tohaina
Kua tāruatia ki te papatopenga
y\times \frac{14}{1.5}=4.2
Tē taea kia ōrite te tāupe y ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te y.
y\times \frac{140}{15}=4.2
Whakarohaina te \frac{14}{1.5} mā te whakarea i te taurunga me te tauraro ki te 10.
y\times \frac{28}{3}=4.2
Whakahekea te hautanga \frac{140}{15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.
y=4.2\times \frac{3}{28}
Me whakarea ngā taha e rua ki te \frac{3}{28}, te tau utu o \frac{28}{3}.
y=\frac{21}{5}\times \frac{3}{28}
Me tahuri ki tau ā-ira 4.2 ki te hautau \frac{42}{10}. Whakahekea te hautanga \frac{42}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
y=\frac{21\times 3}{5\times 28}
Me whakarea te \frac{21}{5} ki te \frac{3}{28} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.
y=\frac{63}{140}
Mahia ngā whakarea i roto i te hautanga \frac{21\times 3}{5\times 28}.
y=\frac{9}{20}
Whakahekea te hautanga \frac{63}{140} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 7.
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