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y=2x−3,y=−12x+4
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Solution
(
x=7+3√54,
y=7+3√52−3
x=7−3√54,
y=7−3√52−3
)
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Solution steps
Solve by:
One step at a time
[
y=2x−3
y=−12x+4
]
Subtrair as equações
y=2x−3
−
y=−12x+4
y−y=2x−3−(−12x+4)
Simplificar
0=2x+12x−7
Resolver 0=2x+12x−7:x=7+3√54,x=7−3√54
Inserir as soluções x=7+3√54,x=7−3√54 em y=2x−3
Para y=2x−3, substituir x com 7+3√54:y=7+3√52−3
Para y=2x−3, substituir x com 7−3√54:y=7−3√52−3
Verificar soluções inserindo-as nas equações originais
Portanto, as soluções finais para y=2x−3,y=−12x+4 são