Equações e Inequações do 1º grau
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Natália Silva
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual das equações abaixo representa uma equação do 1º grau com uma única incógnita?
x² + x = 0
2x + 5
3x = 6
x > y
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Assinale a equação que representa:
o triplo de um número mais 4 é igual ao próprio número adicionado de 16 unidades.
2x + 4 = x + 16
3x + 4 + 16 = x
3x > x + 4 + 16
3x + 4 = x + 16
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O valor numérico da expressão 4x + 7 para x = 6 é igual a:
29
31
33
34
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A expressão 5x + 3 + 6 + 2x pode ser reduzida para:
5x + 11
16x
7x + 9
7x = 9
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A raiz da equação 3x + 1 = 28 é:
6
7
8
9
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O valor de x que torna a equação 5x + 3 = 38 verdadeira é:
5
6
7
8
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ao resolver a equação 6x - 7 = 45, encontramos:
x = 52
x = 38/6
x = 26/3
x = 9
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