
Resolvendo Equações do Primeiro Grau
Interactive Video
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Ethan Morris
FREE Resource
Standards-aligned
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o principal objetivo ao resolver uma equação do primeiro grau?
Eliminar todos os números
Adicionar termos iguais em ambos os lados
Isolar a incógnita
Multiplicar todos os termos por um número
Tags
CCSS.6.EE.B.7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se temos a equação 2x + 1 = 0, qual é o valor de x?
x = 1/2
x = -1/2
x = -2
x = 2
Tags
CCSS.7.EE.B.4A
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na equação 3x + 5 = -2, qual é o primeiro passo para isolar x?
Multiplicar ambos os lados por 3
Subtrair 5 de ambos os lados
Adicionar 5 a ambos os lados
Dividir ambos os lados por 3
Tags
CCSS.6.EE.B.7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado final para x na equação 3x = -7?
x = -21
x = 7/3
x = -7/3
x = 3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na equação x + 2 = -3x + 1, qual é o valor de x após simplificar?
x = 1/4
x = -1/4
x = 1/2
x = -1/2
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