Whakaoti mō y
y = -\frac{66}{23} = -2\frac{20}{23} = -2.869565217391304
Whakaoti mō x (complex solution)
x\in \mathrm{C}
y = -\frac{66}{23} = -2\frac{20}{23} = -2.869565217391304
Whakaoti mō x
x\in \mathrm{R}
y = -\frac{66}{23} = -2\frac{20}{23} = -2.869565217391304
Graph
Tohaina
Kua tāruatia ki te papatopenga
12x+3y-12x+20y=15-81
Hei kimi i te tauaro o 12x-20y, kimihia te tauaro o ia taurangi.
3y+20y=15-81
Pahekotia te 12x me -12x, ka 0.
23y=15-81
Pahekotia te 3y me 20y, ka 23y.
23y=-66
Tangohia te 81 i te 15, ka -66.
y=\frac{-66}{23}
Whakawehea ngā taha e rua ki te 23.
y=-\frac{66}{23}
Ka taea te hautanga \frac{-66}{23} te tuhi anō ko -\frac{66}{23} mā te tango i te tohu tōraro.
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