
Atividade de pensamento lógico
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7th Grade
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ERICA KAUANE DA SILVA AIRES
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11 Slides • 3 Questions
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Resolução de equações do 1º grau:
By ERICA KAUANE DA SILVA AIRES
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Uma equação é uma expressão matemática que possui uma ou mais letras que representam números desconhecidos. Cada uma dessas letras que representa um número desconhecido é chamada de incógnita.
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Em geral, em uma equação, as incógnitas são representadas pelas letras x ou y e o expoente das incógnitas é o que determina o grau da equação.
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Equação de 3º grau: A variável principal tem um expoente igual a 3, ou seja,
A estrutura básica é
Exemplo:
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Isso resulta em:
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Resultado: x=7
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Multiple Choice
Resolva a equação 3x−5=10
a) x = 5
b) x = 3
c) x = 7
d) x = 10
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Multiple Choice
Resolva a equação 4x + 2 = 18.
a) x = 4
b) x = 5
c) x = 3
d) x = 6
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Multiple Choice
Resolva a equação 5x - 10 = 15.
a) x = 6
b) x = 5
c) x = 3
d) x = 2
Resolução de equações do 1º grau:
By ERICA KAUANE DA SILVA AIRES
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